31343393090 has 16 divisors (see below), whose sum is σ = 56420796672. Its totient is φ = 12536759664.

The previous prime is 31343393087. The next prime is 31343393113. The reversal of 31343393090 is 9039334313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190397 + ... + 314543.

It is an arithmetic number, because the mean of its divisors is an integer number (3526299792).

Almost surely, 2^31343393090 is an apocalyptic number.

31343393090 is a deficient number, since it is larger than the sum of its proper divisors (25077403582).

31343393090 is a wasteful number, since it uses less digits than its factorization.

31343393090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149401.

The product of its (nonzero) digits is 78732, while the sum is 38.

The spelling of 31343393090 in words is "thirty-one billion, three hundred forty-three million, three hundred ninety-three thousand, ninety".