1311831183131 has 32 divisors (see below), whose sum is σ = 1619241062400. Its totient is φ = 1037889135360.

The previous prime is 1311831183097. The next prime is 1311831183149. The reversal of 1311831183131 is 1313811381131.

It is not a de Polignac number, because 1311831183131 - 2¹⁴ = 1311831166747 is a prime.

It is a super-2 number, since 2×1311831183131² (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 = 1311831183091 and 1311831183100.

It is not an unprimeable number, because it can be changed into a prime (1311831183151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8660615 + ... + 8810783.

It is an arithmetic number, because the mean of its divisors is an integer number (50601283200).

Almost surely, 2^{1311831183131} is an apocalyptic number.

1311831183131 is a deficient number, since it is larger than the sum of its proper divisors (307409879269).

1311831183131 is a wasteful number, since it uses less digits than its factorization.

1311831183131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152099.

The product of its digits is 5184, while the sum is 35.

The spelling of 1311831183131 in words is "one trillion, three hundred eleven billion, eight hundred thirty-one million, one hundred eighty-three thousand, one hundred thirty-one".