1310313131231 has 4 divisors (see below), whose sum is σ = 1411106449032. Its totient is φ = 1209519813432.

The previous prime is 1310313131167. The next prime is 1310313131249. The reversal of 1310313131231 is 1321313130131.

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 1310313131231 - 2⁶ = 1310313131167 is a prime.

It is a super-2 number, since 2×1310313131231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310313131197 and 1310313131206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310313131531) 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, 50396658881 + ... + 50396658906.

It is an arithmetic number, because the mean of its divisors is an integer number (352776612258).

Almost surely, 2^{1310313131231} is an apocalyptic number.

1310313131231 is a deficient number, since it is larger than the sum of its proper divisors (100793317801).

1310313131231 is a wasteful number, since it uses less digits than its factorization.

1310313131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100793317800.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1310313131231 its reverse (1321313130131), we get a palindrome (2631626261362).

The spelling of 1310313131231 in words is "one trillion, three hundred ten billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred thirty-one".