23131023311 has 8 divisors (see below), whose sum is σ = 25234944384. Its totient is φ = 21027285720.

The previous prime is 23131023281. The next prime is 23131023319. The reversal of 23131023311 is 11332013132.

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

It is a cyclic number.

It is not a de Polignac number, because 23131023311 - 2²² = 23126829007 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 (23131023319) 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, 471440 + ... + 518186.

It is an arithmetic number, because the mean of its divisors is an integer number (3154368048).

Almost surely, 2^23131023311 is an apocalyptic number.

23131023311 is a deficient number, since it is larger than the sum of its proper divisors (2103921073).

23131023311 is a wasteful number, since it uses less digits than its factorization.

23131023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91741.

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

Adding to 23131023311 its reverse (11332013132), we get a palindrome (34463036443).

The spelling of 23131023311 in words is "twenty-three billion, one hundred thirty-one million, twenty-three thousand, three hundred eleven".