1312131332231 has 8 divisors (see below), whose sum is σ = 1316767173120. Its totient is φ = 1307500682752.

The previous prime is 1312131332207. The next prime is 1312131332233. The reversal of 1312131332231 is 1322331312131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312131332231 - 2³⁰ = 1311057590407 is a prime.

It is a super-2 number, since 2×1312131332231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312131332231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312131332233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791111 + ... + 1802808.

It is an arithmetic number, because the mean of its divisors is an integer number (164595896640).

Almost surely, 2^{1312131332231} is an apocalyptic number.

1312131332231 is a deficient number, since it is larger than the sum of its proper divisors (4635840889).

1312131332231 is a wasteful number, since it uses less digits than its factorization.

1312131332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595705.

The product of its digits is 1944, while the sum is 26.

Adding to 1312131332231 its reverse (1322331312131), we get a palindrome (2634462644362).

The spelling of 1312131332231 in words is "one trillion, three hundred twelve billion, one hundred thirty-one million, three hundred thirty-two thousand, two hundred thirty-one".