1232120564631 has 24 divisors (see below), whose sum is σ = 1941562855440. Its totient is φ = 746724528000.

The previous prime is 1232120564603. The next prime is 1232120564639. The reversal of 1232120564631 is 1364650212321.

1232120564631 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 1 + 2 + 0 + 5 + 646 + 3 + 1 = 666.

It is not a de Polignac number, because 1232120564631 - 2³⁰ = 1231046822807 is a prime.

It is a super-2 number, since 2×1232120564631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232120564639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6500065 + ... + 6686933.

It is an arithmetic number, because the mean of its divisors is an integer number (80898452310).

Almost surely, 2^{1232120564631} is an apocalyptic number.

1232120564631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1232120564631 is a deficient number, since it is larger than the sum of its proper divisors (709442290809).

1232120564631 is a wasteful number, since it uses less digits than its factorization.

1232120564631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253487 (or 253484 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 1232120564631 its reverse (1364650212321), we get a palindrome (2596770776952).

The spelling of 1232120564631 in words is "one trillion, two hundred thirty-two billion, one hundred twenty million, five hundred sixty-four thousand, six hundred thirty-one".