31004040212399 has 2 divisors, whose sum is σ = 31004040212400. Its totient is φ = 31004040212398.

The previous prime is 31004040212359. The next prime is 31004040212447. The reversal of 31004040212399 is 99321204040013.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31004040212399 is a prime.

It is a super-2 number, since 2×31004040212399² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31004040212359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15502020106199 + 15502020106200.

It is an arithmetic number, because the mean of its divisors is an integer number (15502020106200).

Almost surely, 2^{31004040212399} is an apocalyptic number.

31004040212399 is a deficient number, since it is larger than the sum of its proper divisors (1).

31004040212399 is an equidigital number, since it uses as much as digits as its factorization.

31004040212399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 31004040212399 in words is "thirty-one trillion, four billion, forty million, two hundred twelve thousand, three hundred ninety-nine".