1312034131 has 4 divisors (see below), whose sum is σ = 1312148200. Its totient is φ = 1311920064.

The previous prime is 1312034123. The next prime is 1312034147. The reversal of 1312034131 is 1314302131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312034131 - 2³ = 1312034123 is a prime.

It is a super-2 number, since 2×1312034131² = 3442867121817850322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312034099 and 1312034108.

It is not an unprimeable number, because it can be changed into a prime (1312034161) 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, 37566 + ... + 63523.

It is an arithmetic number, because the mean of its divisors is an integer number (328037050).

Almost surely, 2^1312034131 is an apocalyptic number.

1312034131 is a deficient number, since it is larger than the sum of its proper divisors (114069).

1312034131 is a wasteful number, since it uses less digits than its factorization.

1312034131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114068.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1312034131 is about 36222.0116917876. The cubic root of 1312034131 is about 1094.7502279150.

Adding to 1312034131 its reverse (1314302131), we get a palindrome (2626336262).

The spelling of 1312034131 in words is "one billion, three hundred twelve million, thirty-four thousand, one hundred thirty-one".