31000402199 has 8 divisors (see below), whose sum is σ = 33406706592. Its totient is φ = 28597191840.

The previous prime is 31000402117. The next prime is 31000402229. The reversal of 31000402199 is 99120400013.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31000402199 is a prime.

It is a super-2 number, since 2×31000402199² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000402399) 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 in 7 ways as a sum of consecutive naturals, for example, 752672 + ... + 792789.

It is an arithmetic number, because the mean of its divisors is an integer number (4175838324).

Almost surely, 2^31000402199 is an apocalyptic number.

31000402199 is a deficient number, since it is larger than the sum of its proper divisors (2406304393).

31000402199 is a wasteful number, since it uses less digits than its factorization.

31000402199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547017.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 31000402199 in words is "thirty-one billion, four hundred two thousand, one hundred ninety-nine".