23331111320 has 128 divisors (see below), whose sum is σ = 59386478400. Its totient is φ = 8171520000.

The previous prime is 23331111311. The next prime is 23331111347. The reversal of 23331111320 is 2311113332.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23331111292 and 23331111301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5829320 + ... + 5833320.

Almost surely, 2^23331111320 is an apocalyptic number.

23331111320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23331111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29693239200).

23331111320 is an abundant number, since it is smaller than the sum of its proper divisors (36055367080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23331111320 is a wasteful number, since it uses less digits than its factorization.

23331111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509 (or 4505 counting only the distinct ones).

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

Adding to 23331111320 its reverse (2311113332), we get a palindrome (25642224652).

The spelling of 23331111320 in words is "twenty-three billion, three hundred thirty-one million, one hundred eleven thousand, three hundred twenty".