23311021313433 has 64 divisors (see below), whose sum is σ = 38488889843712. Its totient is φ = 12244457594880.

The previous prime is 23311021313429. The next prime is 23311021313441. The reversal of 23311021313433 is 33431312011332.

It is a happy number.

It is not a de Polignac number, because 23311021313433 - 2² = 23311021313429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23311021313433.

It is not an unprimeable number, because it can be changed into a prime (23311021313453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210422185 + ... + 210532937.

It is an arithmetic number, because the mean of its divisors is an integer number (601388903808).

Almost surely, 2^{23311021313433} is an apocalyptic number.

It is an amenable number.

23311021313433 is a deficient number, since it is larger than the sum of its proper divisors (15177868530279).

23311021313433 is a wasteful number, since it uses less digits than its factorization.

23311021313433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124534.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 23311021313433 its reverse (33431312011332), we get a palindrome (56742333324765).

The spelling of 23311021313433 in words is "twenty-three trillion, three hundred eleven billion, twenty-one million, three hundred thirteen thousand, four hundred thirty-three".