31427084117 has 32 divisors (see below), whose sum is σ = 38249487360. Its totient is φ = 25429824000.

The previous prime is 31427084107. The next prime is 31427084131. The reversal of 31427084117 is 71148072413.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31427084117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31427084107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1233059 + ... + 1258287.

It is an arithmetic number, because the mean of its divisors is an integer number (1195296480).

Almost surely, 2^31427084117 is an apocalyptic number.

It is an amenable number.

31427084117 is a deficient number, since it is larger than the sum of its proper divisors (6822403243).

31427084117 is a wasteful number, since it uses less digits than its factorization.

31427084117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25565.

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 31427084117 in words is "thirty-one billion, four hundred twenty-seven million, eighty-four thousand, one hundred seventeen".