31321068 has 12 divisors (see below), whose sum is σ = 73082520. Its totient is φ = 10440352.

The previous prime is 31321057. The next prime is 31321109. The reversal of 31321068 is 86012313.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305033 + ... + 1305056.

It is an arithmetic number, because the mean of its divisors is an integer number (6090210).

Almost surely, 2^31321068 is an apocalyptic number.

It is an amenable number.

31321068 is an abundant number, since it is smaller than the sum of its proper divisors (41761452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31321068 is a wasteful number, since it uses less digits than its factorization.

31321068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610096 (or 2610094 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 31321068 is about 5596.5228490555. The cubic root of 31321068 is about 315.2188552155.

The spelling of 31321068 in words is "thirty-one million, three hundred twenty-one thousand, sixty-eight".