23331613331 has 16 divisors (see below), whose sum is σ = 28004608800. Its totient is φ = 19203153408.

The previous prime is 23331613271. The next prime is 23331613343. The reversal of 23331613331 is 13331613332.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23331613331 - 2³⁰ = 22257871507 is a prime.

It is a super-2 number, since 2×23331613331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23331613294 and 23331613303.

It is not an unprimeable number, because it can be changed into a prime (23331613231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2774036 + ... + 2782433.

It is an arithmetic number, because the mean of its divisors is an integer number (1750288050).

Almost surely, 2^23331613331 is an apocalyptic number.

23331613331 is a deficient number, since it is larger than the sum of its proper divisors (4672995469).

23331613331 is a wasteful number, since it uses less digits than its factorization.

23331613331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556518.

The product of its digits is 8748, while the sum is 29.

Subtracting from 23331613331 its reverse (13331613332), we obtain a palindrome (9999999999).

The spelling of 23331613331 in words is "twenty-three billion, three hundred thirty-one million, six hundred thirteen thousand, three hundred thirty-one".