31232202139 has 2 divisors, whose sum is σ = 31232202140. Its totient is φ = 31232202138.

The previous prime is 31232202049. The next prime is 31232202161. The reversal of 31232202139 is 93120223213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31232202139 - 2¹¹ = 31232200091 is a prime.

It is not a weakly prime, because it can be changed into another prime (31232202439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616101069 + 15616101070.

It is an arithmetic number, because the mean of its divisors is an integer number (15616101070).

Almost surely, 2^31232202139 is an apocalyptic number.

31232202139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232202139 is an equidigital number, since it uses as much as digits as its factorization.

31232202139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 31232202139 in words is "thirty-one billion, two hundred thirty-two million, two hundred two thousand, one hundred thirty-nine".