1312766231 has 16 divisors (see below), whose sum is σ = 1590168384. Its totient is φ = 1057964544.

The previous prime is 1312766219. The next prime is 1312766233. The reversal of 1312766231 is 1326672131.

It is not a de Polignac number, because 1312766231 - 2¹⁸ = 1312504087 is a prime.

It is a super-2 number, since 2×1312766231² = 3446710354507890722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312766233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125021 + ... + 135113.

It is an arithmetic number, because the mean of its divisors is an integer number (99385524).

Almost surely, 2^1312766231 is an apocalyptic number.

1312766231 is a deficient number, since it is larger than the sum of its proper divisors (277402153).

1312766231 is a wasteful number, since it uses less digits than its factorization.

1312766231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210.

The product of its digits is 9072, while the sum is 32.

The square root of 1312766231 is about 36232.1160160430. The cubic root of 1312766231 is about 1094.9538094122.

The spelling of 1312766231 in words is "one billion, three hundred twelve million, seven hundred sixty-six thousand, two hundred thirty-one".