1131023131012 has 12 divisors (see below), whose sum is σ = 1979299123200. Its totient is φ = 565509095816.

The previous prime is 1131023131003. The next prime is 1131023131027. The reversal of 1131023131012 is 2101313201311.

It is a super-2 number, since 2×1131023131012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748989 + ... + 1680187.

It is an arithmetic number, because the mean of its divisors is an integer number (164941593600).

Almost surely, 2^{1131023131012} is an apocalyptic number.

It is an amenable number.

1131023131012 is a deficient number, since it is larger than the sum of its proper divisors (848275992188).

1131023131012 is a wasteful number, since it uses less digits than its factorization.

1131023131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234850 (or 1234848 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1131023131012 its reverse (2101313201311), we get a palindrome (3232336332323).

The spelling of 1131023131012 in words is "one trillion, one hundred thirty-one billion, twenty-three million, one hundred thirty-one thousand, twelve".