1312152131 has 2 divisors, whose sum is σ = 1312152132. Its totient is φ = 1312152130.

The previous prime is 1312152113. The next prime is 1312152133. The reversal of 1312152131 is 1312512131.

Together with previous prime (1312152113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312152131 - 2³⁰ = 238410307 is a prime.

It is a super-2 number, since 2×1312152131² = 3443486429775682322, which contains 22 as substring.

Together with 1312152133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1312152133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656076065 + 656076066.

It is an arithmetic number, because the mean of its divisors is an integer number (656076066).

Almost surely, 2^1312152131 is an apocalyptic number.

1312152131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312152131 is an equidigital number, since it uses as much as digits as its factorization.

1312152131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 20.

The square root of 1312152131 is about 36223.6404989891. The cubic root of 1312152131 is about 1094.7830463332.

Adding to 1312152131 its reverse (1312512131), we get a palindrome (2624664262).

Subtracting 1312152131 from its reverse (1312512131), we obtain a square (360000 = 600²).

The spelling of 1312152131 in words is "one billion, three hundred twelve million, one hundred fifty-two thousand, one hundred thirty-one".