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23012110331 = 73287444333
BaseRepresentation
bin10101011011101000…
…001110111111111011
32012101202100022211122
4111123220032333323
5334112100012311
614323245215455
71443155465450
oct253350167773
965352308748
1023012110331
119839811101
12456286158b
13222973c442
141184361827
158ea4030db
hex55ba0effb

23012110331 has 4 divisors (see below), whose sum is σ = 26299554672. Its totient is φ = 19724665992.

The previous prime is 23012110321. The next prime is 23012110391. The reversal of 23012110331 is 13301121032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23012110331 - 26 = 23012110267 is a prime.

It is a super-2 number, since 2×230121103312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23012110321) 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 3 ways as a sum of consecutive naturals, for example, 1643722160 + ... + 1643722173.

It is an arithmetic number, because the mean of its divisors is an integer number (6574888668).

Almost surely, 223012110331 is an apocalyptic number.

23012110331 is a deficient number, since it is larger than the sum of its proper divisors (3287444341).

23012110331 is an equidigital number, since it uses as much as digits as its factorization.

23012110331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287444340.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23012110331 its reverse (13301121032), we get a palindrome (36313231363).

The spelling of 23012110331 in words is "twenty-three billion, twelve million, one hundred ten thousand, three hundred thirty-one".

Divisors: 1 7 3287444333 23012110331