1312113331131 has 16 divisors (see below), whose sum is σ = 1796815497984. Its totient is φ = 851077947744.

The previous prime is 1312113331129. The next prime is 1312113331181. The reversal of 1312113331131 is 1311333112131.

It is not a de Polignac number, because 1312113331131 - 2¹ = 1312113331129 is a prime.

It is a super-2 number, since 2×1312113331131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312113331181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4724920 + ... + 4994906.

It is an arithmetic number, because the mean of its divisors is an integer number (112300968624).

Almost surely, 2^{1312113331131} is an apocalyptic number.

1312113331131 is a deficient number, since it is larger than the sum of its proper divisors (484702166853).

1312113331131 is a wasteful number, since it uses less digits than its factorization.

1312113331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313810.

The product of its digits is 486, while the sum is 24.

Adding to 1312113331131 its reverse (1311333112131), we get a palindrome (2623446443262).

The spelling of 1312113331131 in words is "one trillion, three hundred twelve billion, one hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-one".