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23313012311 = 435031077859
BaseRepresentation
bin10101101101100100…
…000101011001010111
32020011201112201202102
4111231210011121113
5340221112343221
614413154432315
71453501222631
oct255544053127
966151481672
1023313012311
119983651226
12462759269b
132276b94954
1411b22cba51
15916a3e30b
hex56d905657

23313012311 has 8 divisors (see below), whose sum is σ = 23902623360. Its totient is φ = 22725558072.

The previous prime is 23313012257. The next prime is 23313012319. The reversal of 23313012311 is 11321031332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23313012311 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 (23313012319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517301 + ... + 560558.

It is an arithmetic number, because the mean of its divisors is an integer number (2987827920).

Almost surely, 223313012311 is an apocalyptic number.

23313012311 is a deficient number, since it is larger than the sum of its proper divisors (589611049).

23313012311 is a wasteful number, since it uses less digits than its factorization.

23313012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078405.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23313012311 its reverse (11321031332), we get a palindrome (34634043643).

The spelling of 23313012311 in words is "twenty-three billion, three hundred thirteen million, twelve thousand, three hundred eleven".

Divisors: 1 43 503 21629 1077859 46347937 542163077 23313012311