1312131032 has 48 divisors (see below), whose sum is σ = 2608783200. Its totient is φ = 618609600.

The previous prime is 1312131011. The next prime is 1312131047. The reversal of 1312131032 is 2301312131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312131032.

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, 689282 + ... + 691182.

It is an arithmetic number, because the mean of its divisors is an integer number (54349650).

Almost surely, 2^1312131032 is an apocalyptic number.

It is an amenable number.

1312131032 is a deficient number, since it is larger than the sum of its proper divisors (1296652168).

1312131032 is a wasteful number, since it uses less digits than its factorization.

1312131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2161 counting only the distinct ones).

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

The square root of 1312131032 is about 36223.3492653565. The cubic root of 1312131032 is about 1094.7771783776. Note that the first 3 decimals are identical.

Adding to 1312131032 its reverse (2301312131), we get a palindrome (3613443163).

The spelling of 1312131032 in words is "one billion, three hundred twelve million, one hundred thirty-one thousand, thirty-two".