23320213312 has 56 divisors (see below), whose sum is σ = 53139990240. Its totient is φ = 10042191360.

The previous prime is 23320213309. The next prime is 23320213313. The reversal of 23320213312 is 21331202332.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320213313) 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, 858343 + ... + 885094.

Almost surely, 2^23320213312 is an apocalyptic number.

23320213312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23320213312 is an abundant number, since it is smaller than the sum of its proper divisors (29819776928).

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

23320213312 is a wasteful number, since it uses less digits than its factorization.

23320213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743479 (or 1743469 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23320213312 its reverse (21331202332), we get a palindrome (44651415644).

It can be divided in two parts, 23320 and 213312, that added together give a palindrome (236632).

The spelling of 23320213312 in words is "twenty-three billion, three hundred twenty million, two hundred thirteen thousand, three hundred twelve".