31331014 has 48 divisors (see below), whose sum is σ = 58183776. Its totient is φ = 12545280.

The previous prime is 31330993. The next prime is 31331023. The reversal of 31331014 is 41013313.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 72142 + ... + 72574.

It is an arithmetic number, because the mean of its divisors is an integer number (1212162).

It is a self-describing number.

Almost surely, 2^31331014 is an apocalyptic number.

31331014 is a deficient number, since it is larger than the sum of its proper divisors (26852762).

31331014 is a wasteful number, since it uses less digits than its factorization.

31331014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 31331014 is about 5597.4113659798. The cubic root of 31331014 is about 315.2522175829.

Adding to 31331014 its reverse (41013313), we get a palindrome (72344327).

The spelling of 31331014 in words is "thirty-one million, three hundred thirty-one thousand, fourteen".