12031112311320 has 64 divisors (see below), whose sum is σ = 36093619789920. Its totient is φ = 3208271473664.

The previous prime is 12031112311279. The next prime is 12031112311357. The reversal of 12031112311320 is 2311321113021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18924862 + ... + 19550258.

Almost surely, 2^{12031112311320} is an apocalyptic number.

12031112311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031112311320 is an abundant number, since it is smaller than the sum of its proper divisors (24062507478600).

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

12031112311320 is a wasteful number, since it uses less digits than its factorization.

12031112311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785724 (or 785720 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12031112311320 its reverse (2311321113021), we get a palindrome (14342433424341).

The spelling of 12031112311320 in words is "twelve trillion, thirty-one billion, one hundred twelve million, three hundred eleven thousand, three hundred twenty".