31107807099 has 6 divisors (see below), whose sum is σ = 44933499156. Its totient is φ = 20738538060.

The previous prime is 31107807089. The next prime is 31107807103. The reversal of 31107807099 is 99070870113.

It is not a de Polignac number, because 31107807099 - 2³¹ = 28960323451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31107807079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1728211497 + ... + 1728211514.

It is an arithmetic number, because the mean of its divisors is an integer number (7488916526).

Almost surely, 2^31107807099 is an apocalyptic number.

31107807099 is a deficient number, since it is larger than the sum of its proper divisors (13825692057).

31107807099 is a wasteful number, since it uses less digits than its factorization.

31107807099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456423017 (or 3456423014 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 31107807099 in words is "thirty-one billion, one hundred seven million, eight hundred seven thousand, ninety-nine".