1131126323553 has 20 divisors (see below), whose sum is σ = 1689738078468. Its totient is φ = 754070446080.

The previous prime is 1131126323539. The next prime is 1131126323557. The reversal of 1131126323553 is 3553236211311.

1131126323553 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 12 + 632 + 3 + 5 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 769500892944 + 361625430609 = 877212^2 + 601353^2 .

It is not a de Polignac number, because 1131126323553 - 2³² = 1126831356257 is a prime.

It is a super-3 number, since 3×1131126323553³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131126323557) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6362593 + ... + 6537953.

Almost surely, 2^{1131126323553} is an apocalyptic number.

It is an amenable number.

1131126323553 is a deficient number, since it is larger than the sum of its proper divisors (558611754915).

1131126323553 is an equidigital number, since it uses as much as digits as its factorization.

1131126323553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255006 (or 254997 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 1131126323553 in words is "one trillion, one hundred thirty-one billion, one hundred twenty-six million, three hundred twenty-three thousand, five hundred fifty-three".