1312031132 has 36 divisors (see below), whose sum is σ = 2375537640. Its totient is φ = 633967584.

The previous prime is 1312031101. The next prime is 1312031141. The reversal of 1312031132 is 2311302131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312031132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732494 + ... + 734282.

Almost surely, 2^1312031132 is an apocalyptic number.

It is an amenable number.

1312031132 is a deficient number, since it is larger than the sum of its proper divisors (1063506508).

1312031132 is a wasteful number, since it uses less digits than its factorization.

1312031132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1312031132 is about 36221.9702942841. The cubic root of 1312031132 is about 1094.7493938009.

Adding to 1312031132 its reverse (2311302131), we get a palindrome (3623333263).

The spelling of 1312031132 in words is "one billion, three hundred twelve million, thirty-one thousand, one hundred thirty-two".