31143040321199 has 2 divisors, whose sum is σ = 31143040321200. Its totient is φ = 31143040321198.

The previous prime is 31143040321193. The next prime is 31143040321231. The reversal of 31143040321199 is 99112304034113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31143040321199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31143040321193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15571520160599 + 15571520160600.

It is an arithmetic number, because the mean of its divisors is an integer number (15571520160600).

Almost surely, 2^{31143040321199} is an apocalyptic number.

31143040321199 is a deficient number, since it is larger than the sum of its proper divisors (1).

31143040321199 is an equidigital number, since it uses as much as digits as its factorization.

31143040321199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 31143040321199 in words is "thirty-one trillion, one hundred forty-three billion, forty million, three hundred twenty-one thousand, one hundred ninety-nine".