1931982402131 has 2 divisors, whose sum is σ = 1931982402132. Its totient is φ = 1931982402130.

The previous prime is 1931982402107. The next prime is 1931982402139. The reversal of 1931982402131 is 1312042891391.

It is a strong prime.

It is an emirp because it is prime and its reverse (1312042891391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1931982402131 - 2³⁴ = 1914802532947 is a prime.

It is a super-3 number, since 3×1931982402131³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1931982402139) 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, 965991201065 + 965991201066.

It is an arithmetic number, because the mean of its divisors is an integer number (965991201066).

Almost surely, 2^{1931982402131} is an apocalyptic number.

1931982402131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1931982402131 is an equidigital number, since it uses as much as digits as its factorization.

1931982402131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 1931982402131 in words is "one trillion, nine hundred thirty-one billion, nine hundred eighty-two million, four hundred two thousand, one hundred thirty-one".