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23043050121 = 3721321396673
BaseRepresentation
bin10101011101011110…
…010000101010001001
32012110220120020020210
4111131132100222021
5334143010100441
614330312311333
71444012460100
oct253536205211
965426506223
1023043050121
119855223683
1245710a2549
132232c83100
1411884d7037
158eceb5616
hex55d790a89

23043050121 has 72 divisors (see below), whose sum is σ = 38985236640. Its totient is φ = 12065324544.

The previous prime is 23043050101. The next prime is 23043050123. The reversal of 23043050121 is 12105034032.

It is not a de Polignac number, because 23043050121 - 217 = 23042919049 is a prime.

It is a super-2 number, since 2×230430501212 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (23043050123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3449841 + ... + 3456513.

It is an arithmetic number, because the mean of its divisors is an integer number (541461620).

Almost surely, 223043050121 is an apocalyptic number.

23043050121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23043050121 is a deficient number, since it is larger than the sum of its proper divisors (15942186519).

23043050121 is a wasteful number, since it uses less digits than its factorization.

23043050121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855 (or 6835 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 23043050121 its reverse (12105034032), we get a palindrome (35148084153).

The spelling of 23043050121 in words is "twenty-three billion, forty-three million, fifty thousand, one hundred twenty-one".

Divisors: 1 3 7 13 21 39 49 91 139 147 169 273 417 507 637 973 1183 1807 1911 2919 3549 5421 6673 6811 8281 12649 20019 20433 23491 24843 37947 46711 70473 86749 88543 140133 164437 260247 265629 326977 493311 607243 927547 980931 1127737 1151059 1821729 2782641 3383211 3453177 4250701 6492829 7894159 12058111 12752103 19478487 23682477 36174333 45449803 55259113 84406777 136349409 156755443 165777339 253220331 470266329 590847439 1097288101 1772542317 3291864303 7681016707 23043050121