31940932099 has 2 divisors, whose sum is σ = 31940932100. Its totient is φ = 31940932098.

The previous prime is 31940932063. The next prime is 31940932109. The reversal of 31940932099 is 99023904913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31940932099 - 2⁹ = 31940931587 is a prime.

It is not a weakly prime, because it can be changed into another prime (31940932399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15970466049 + 15970466050.

It is an arithmetic number, because the mean of its divisors is an integer number (15970466050).

Almost surely, 2^31940932099 is an apocalyptic number.

31940932099 is a deficient number, since it is larger than the sum of its proper divisors (1).

31940932099 is an equidigital number, since it uses as much as digits as its factorization.

31940932099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 49.

The spelling of 31940932099 in words is "thirty-one billion, nine hundred forty million, nine hundred thirty-two thousand, ninety-nine".