1131131232112 has 40 divisors (see below), whose sum is σ = 2521234836992. Its totient is φ = 481560120000.

The previous prime is 1131131232089. The next prime is 1131131232149. The reversal of 1131131232112 is 2112321311311.

It is a super-2 number, since 2×1131131232112² (a number of 25 digits) contains 22 as substring.

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, 33424764 + ... + 33458587.

Almost surely, 2^{1131131232112} is an apocalyptic number.

It is an amenable number.

1131131232112 is an abundant number, since it is smaller than the sum of its proper divisors (1390103604880).

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

1131131232112 is a wasteful number, since it uses less digits than its factorization.

1131131232112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66883517 (or 66883511 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

Adding to 1131131232112 its reverse (2112321311311), we get a palindrome (3243452543423).

It can be divided in two parts, 11311312 and 32112, that added together give a square (11343424 = 3368²).

The spelling of 1131131232112 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred twelve".