1131130021312 has 28 divisors (see below), whose sum is σ = 2342176840656. Its totient is φ = 540975226880.

The previous prime is 1131130021279. The next prime is 1131130021349. The reversal of 1131130021312 is 2131200311311.

It is a super-2 number, since 2×1131130021312² (a number of 25 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 1131130021312.

It is a congruent number.

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, 384213889 + ... + 384216832.

Almost surely, 2^{1131130021312} is an apocalyptic number.

It is an amenable number.

1131130021312 is an abundant number, since it is smaller than the sum of its proper divisors (1211046819344).

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

1131130021312 is an equidigital number, since it uses as much as digits as its factorization.

1131130021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768430756 (or 768430746 counting only the distinct ones).

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

Adding to 1131130021312 its reverse (2131200311311), we get a palindrome (3262330332623).

The spelling of 1131130021312 in words is "one trillion, one hundred thirty-one billion, one hundred thirty million, twenty-one thousand, three hundred twelve".