1231202133112 has 64 divisors (see below), whose sum is σ = 2699230464000. Its totient is φ = 515607745536.

The previous prime is 1231202133047. The next prime is 1231202133157. The reversal of 1231202133112 is 2113312021321.

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, 1005412 + ... + 1863667.

It is an arithmetic number, because the mean of its divisors is an integer number (42175476000).

Almost surely, 2^{1231202133112} is an apocalyptic number.

It is an amenable number.

1231202133112 is an abundant number, since it is smaller than the sum of its proper divisors (1468028330888).

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

1231202133112 is a wasteful number, since it uses less digits than its factorization.

1231202133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869268 (or 2869264 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1231202133112 its reverse (2113312021321), we get a palindrome (3344514154433).

The spelling of 1231202133112 in words is "one trillion, two hundred thirty-one billion, two hundred two million, one hundred thirty-three thousand, one hundred twelve".