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23133323131 = 891674213697
BaseRepresentation
bin10101100010110110…
…100111111101111011
32012201012102120112121
4111202312213331323
5334334112320011
614343255222111
71446160000522
oct254266477573
965635376477
1023133323131
1198a1181076
124597377937
13224889c3a9
1411964b54b9
15905d97e71
hex562da7f7b

23133323131 has 16 divisors (see below), whose sum is σ = 23595606720. Its totient is φ = 22676290560.

The previous prime is 23133323123. The next prime is 23133323141. The reversal of 23133323131 is 13132333132.

It is a cyclic number.

It is not a de Polignac number, because 23133323131 - 23 = 23133323123 is a prime.

It is a super-2 number, since 2×231333231312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23133323096 and 23133323105.

It is not an unprimeable number, because it can be changed into a prime (23133323141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6255475 + ... + 6259171.

It is an arithmetic number, because the mean of its divisors is an integer number (1474725420).

Almost surely, 223133323131 is an apocalyptic number.

23133323131 is a deficient number, since it is larger than the sum of its proper divisors (462283589).

23133323131 is a wasteful number, since it uses less digits than its factorization.

23133323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374.

The product of its digits is 2916, while the sum is 25.

Adding to 23133323131 its reverse (13132333132), we get a palindrome (36265656263).

The spelling of 23133323131 in words is "twenty-three billion, one hundred thirty-three million, three hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 89 167 421 3697 14863 37469 70307 329033 617399 1556437 6257323 54948511 138522893 259924979 23133323131