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23130200121 = 378912375709
BaseRepresentation
bin10101100010101010…
…101101100000111001
32012200222112220120120
4111202222231200321
5334332312400441
614343104243453
71446121312530
oct254252554071
965628486516
1023130200121
11989a438776
124596310589
132248047a62
141195d01317
1590597c966
hex562aad839

23130200121 has 16 divisors (see below), whose sum is σ = 35642044800. Its totient is φ = 13068747648.

The previous prime is 23130200113. The next prime is 23130200173. The reversal of 23130200121 is 12100203132.

It is not a de Polignac number, because 23130200121 - 23 = 23130200113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23130200121.

It is not an unprimeable number, because it can be changed into a prime (23130200101) 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 15 ways as a sum of consecutive naturals, for example, 6185986 + ... + 6189723.

It is an arithmetic number, because the mean of its divisors is an integer number (2227627800).

Almost surely, 223130200121 is an apocalyptic number.

23130200121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23130200121 is a deficient number, since it is larger than the sum of its proper divisors (12511844679).

23130200121 is a wasteful number, since it uses less digits than its factorization.

23130200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12375808.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23130200121 its reverse (12100203132), we get a palindrome (35230403253).

The spelling of 23130200121 in words is "twenty-three billion, one hundred thirty million, two hundred thousand, one hundred twenty-one".

Divisors: 1 3 7 21 89 267 623 1869 12375709 37127127 86629963 259889889 1101438101 3304314303 7710066707 23130200121