1312020120131 has 24 divisors (see below), whose sum is σ = 1563192981504. Its totient is φ = 1097400240720.

The previous prime is 1312020120113. The next prime is 1312020120163. The reversal of 1312020120131 is 1310210202131.

It is a de Polignac number, because none of the positive numbers 2^k-1312020120131 is a prime.

It is a super-2 number, since 2×1312020120131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312020120101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1946846 + ... + 2532636.

It is an arithmetic number, because the mean of its divisors is an integer number (65133040896).

Almost surely, 2^{1312020120131} is an apocalyptic number.

1312020120131 is a deficient number, since it is larger than the sum of its proper divisors (251172861373).

1312020120131 is a wasteful number, since it uses less digits than its factorization.

1312020120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586911 (or 586904 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1312020120131 its reverse (1310210202131), we get a palindrome (2622230322262).

The spelling of 1312020120131 in words is "one trillion, three hundred twelve billion, twenty million, one hundred twenty thousand, one hundred thirty-one".