1731980232131 has 2 divisors, whose sum is σ = 1731980232132. Its totient is φ = 1731980232130.

The previous prime is 1731980232113. The next prime is 1731980232161. The reversal of 1731980232131 is 1312320891371.

Together with previous prime (1731980232113) 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 a de Polignac number, because none of the positive numbers 2^k-1731980232131 is a prime.

It is a super-2 number, since 2×1731980232131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1731980232161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 865990116065 + 865990116066.

It is an arithmetic number, because the mean of its divisors is an integer number (865990116066).

Almost surely, 2^{1731980232131} is an apocalyptic number.

1731980232131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1731980232131 is an equidigital number, since it uses as much as digits as its factorization.

1731980232131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 1731980232131 in words is "one trillion, seven hundred thirty-one billion, nine hundred eighty million, two hundred thirty-two thousand, one hundred thirty-one".