23311120331 has 4 divisors (see below), whose sum is σ = 23481274632. Its totient is φ = 23140966032.

The previous prime is 23311120321. The next prime is 23311120363. The reversal of 23311120331 is 13302111332.

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 23311120331 - 2⁶ = 23311120267 is a prime.

It is a super-2 number, since 2×23311120331² (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 (23311120321) 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, 85076945 + ... + 85077218.

It is an arithmetic number, because the mean of its divisors is an integer number (5870318658).

Almost surely, 2^23311120331 is an apocalyptic number.

23311120331 is a deficient number, since it is larger than the sum of its proper divisors (170154301).

23311120331 is a wasteful number, since it uses less digits than its factorization.

23311120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170154300.

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

Adding to 23311120331 its reverse (13302111332), we get a palindrome (36613231663).

The spelling of 23311120331 in words is "twenty-three billion, three hundred eleven million, one hundred twenty thousand, three hundred thirty-one".