1131320778922 has 16 divisors (see below), whose sum is σ = 1729033934760. Its totient is φ = 554976556992.

The previous prime is 1131320778901. The next prime is 1131320778923. The reversal of 1131320778922 is 2298770231311.

It can be written as a sum of positive squares in 4 ways, for example, as 964145284281 + 167175494641 = 981909^2 + 408871^2 .

It is not an unprimeable number, because it can be changed into a prime (1131320778923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8762428 + ... + 8890600.

Almost surely, 2^{1131320778922} is an apocalyptic number.

1131320778922 is a deficient number, since it is larger than the sum of its proper divisors (597713155838).

1131320778922 is a wasteful number, since it uses less digits than its factorization.

1131320778922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211497.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 1131320778922 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, seven hundred seventy-eight thousand, nine hundred twenty-two".