31232131323199 has 2 divisors, whose sum is σ = 31232131323200. Its totient is φ = 31232131323198.

The previous prime is 31232131323191. The next prime is 31232131323229. The reversal of 31232131323199 is 99132313123213.

It is a weak prime.

It is an emirp because it is prime and its reverse (99132313123213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31232131323199 - 2³ = 31232131323191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31232131323191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616065661599 + 15616065661600.

It is an arithmetic number, because the mean of its divisors is an integer number (15616065661600).

Almost surely, 2^{31232131323199} is an apocalyptic number.

31232131323199 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232131323199 is an equidigital number, since it uses as much as digits as its factorization.

31232131323199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 43.

The spelling of 31232131323199 in words is "thirty-one trillion, two hundred thirty-two billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred ninety-nine".