31343381475 has 24 divisors (see below), whose sum is σ = 59224066560. Its totient is φ = 14328402720.

The previous prime is 31343381413. The next prime is 31343381519. The reversal of 31343381475 is 57418334313.

It is a happy number.

It is not a de Polignac number, because 31343381475 - 2⁷ = 31343381347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29850315 + ... + 29851364.

It is an arithmetic number, because the mean of its divisors is an integer number (2467669440).

Almost surely, 2^31343381475 is an apocalyptic number.

31343381475 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

31343381475 is a deficient number, since it is larger than the sum of its proper divisors (27880685085).

31343381475 is a wasteful number, since it uses less digits than its factorization.

31343381475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59701699 (or 59701694 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The spelling of 31343381475 in words is "thirty-one billion, three hundred forty-three million, three hundred eighty-one thousand, four hundred seventy-five".