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23312012023 = 37630054379
BaseRepresentation
bin10101101101100000…
…010001001011110111
32020011122122220121201
4111231200101023313
5340220333341043
614413121153331
71453456555426
oct255540211367
966148586551
1023312012023
119983028743
12462718b847
132276904571
1411b210b2bd
159168e2c4d
hex56d8112f7

23312012023 has 4 divisors (see below), whose sum is σ = 23942066440. Its totient is φ = 22681957608.

The previous prime is 23312011993. The next prime is 23312012039. The reversal of 23312012023 is 32021021332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23312012023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312019023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315027153 + ... + 315027226.

It is an arithmetic number, because the mean of its divisors is an integer number (5985516610).

Almost surely, 223312012023 is an apocalyptic number.

23312012023 is a deficient number, since it is larger than the sum of its proper divisors (630054417).

23312012023 is an equidigital number, since it uses as much as digits as its factorization.

23312012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630054416.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23312012023 its reverse (32021021332), we get a palindrome (55333033355).

The spelling of 23312012023 in words is "twenty-three billion, three hundred twelve million, twelve thousand, twenty-three".

Divisors: 1 37 630054379 23312012023