31344440099 has 12 divisors (see below), whose sum is σ = 37351216728. Its totient is φ = 26211376800.

The previous prime is 31344440063. The next prime is 31344440117. The reversal of 31344440099 is 99004444313.

It is a de Polignac number, because none of the positive numbers 2^k-31344440099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (31344440299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7798997 + ... + 7803014.

It is an arithmetic number, because the mean of its divisors is an integer number (3112601394).

Almost surely, 2^31344440099 is an apocalyptic number.

31344440099 is a deficient number, since it is larger than the sum of its proper divisors (6006776629).

31344440099 is a wasteful number, since it uses less digits than its factorization.

31344440099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15602066 (or 15602059 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 31344440099 in words is "thirty-one billion, three hundred forty-four million, four hundred forty thousand, ninety-nine".