2031113199991 has 2 divisors, whose sum is σ = 2031113199992. Its totient is φ = 2031113199990.

The previous prime is 2031113199967. The next prime is 2031113200069. The reversal of 2031113199991 is 1999913111302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2031113199991 - 2²⁹ = 2030576329079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031113190991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015556599995 + 1015556599996.

It is an arithmetic number, because the mean of its divisors is an integer number (1015556599996).

Almost surely, 2^{2031113199991} is an apocalyptic number.

2031113199991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031113199991 is an equidigital number, since it uses as much as digits as its factorization.

2031113199991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 49.

The spelling of 2031113199991 in words is "two trillion, thirty-one billion, one hundred thirteen million, one hundred ninety-nine thousand, nine hundred ninety-one".