131002203131 has 2 divisors, whose sum is σ = 131002203132. Its totient is φ = 131002203130.

The previous prime is 131002203113. The next prime is 131002203247. The reversal of 131002203131 is 131302200131.

Together with previous prime (131002203113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131002203131 - 2¹⁴ = 131002186747 is a prime.

It is a super-2 number, since 2×131002203131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131002253131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501101565 + 65501101566.

It is an arithmetic number, because the mean of its divisors is an integer number (65501101566).

Almost surely, 2^131002203131 is an apocalyptic number.

131002203131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131002203131 is an equidigital number, since it uses as much as digits as its factorization.

131002203131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131002203131 its reverse (131302200131), we get a palindrome (262304403262).

The spelling of 131002203131 in words is "one hundred thirty-one billion, two million, two hundred three thousand, one hundred thirty-one".