1312332131 has 4 divisors (see below), whose sum is σ = 1431635064. Its totient is φ = 1193029200.

The previous prime is 1312332089. The next prime is 1312332143.

1312332131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1312332131 - 2⁶ = 1312332067 is a prime.

It is a super-2 number, since 2×1312332131² = 3444431244110002322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312332431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59651450 + ... + 59651471.

It is an arithmetic number, because the mean of its divisors is an integer number (357908766).

Almost surely, 2^1312332131 is an apocalyptic number.

1312332131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1312332131 is a deficient number, since it is larger than the sum of its proper divisors (119302933).

1312332131 is a wasteful number, since it uses less digits than its factorization.

1312332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119302932.

The product of its digits is 324, while the sum is 20.

The square root of 1312332131 is about 36226.1249790810. The cubic root of 1312332131 is about 1094.8331045374.

It can be divided in two parts, 13123 and 32131, that added together give a palindrome (45254).

The spelling of 1312332131 in words is "one billion, three hundred twelve million, three hundred thirty-two thousand, one hundred thirty-one".