23120320312 has 32 divisors (see below), whose sum is σ = 43497576720. Its totient is φ = 11521036800.

The previous prime is 23120320303. The next prime is 23120320361. The reversal of 23120320312 is 21302302132.

It is a super-2 number, since 2×23120320312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23120320312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3063808 + ... + 3071344.

Almost surely, 2^23120320312 is an apocalyptic number.

It is an amenable number.

23120320312 is a deficient number, since it is larger than the sum of its proper divisors (20377256408).

23120320312 is a wasteful number, since it uses less digits than its factorization.

23120320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8791 (or 8787 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23120320312 its reverse (21302302132), we get a palindrome (44422622444).

The spelling of 23120320312 in words is "twenty-three billion, one hundred twenty million, three hundred twenty thousand, three hundred twelve".