31042316 has 6 divisors (see below), whose sum is σ = 54324060. Its totient is φ = 15521156.

The previous prime is 31042309. The next prime is 31042327. The reversal of 31042316 is 61324013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3880286 + ... + 3880293.

It is an arithmetic number, because the mean of its divisors is an integer number (9054010).

Almost surely, 2^31042316 is an apocalyptic number.

It is an amenable number.

31042316 is a deficient number, since it is larger than the sum of its proper divisors (23281744).

31042316 is a wasteful number, since it uses less digits than its factorization.

31042316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7760583 (or 7760581 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 31042316 is about 5571.5631558836. The cubic root of 31042316 is about 314.2809364484.

Adding to 31042316 its reverse (61324013), we get a palindrome (92366329).

The spelling of 31042316 in words is "thirty-one million, forty-two thousand, three hundred sixteen".