31131014 has 16 divisors (see below), whose sum is σ = 48411648. Its totient is φ = 15003912.

The previous prime is 31130993. The next prime is 31131031. The reversal of 31131014 is 41013113.

It is a self number, because there is not a number n which added to its sum of digits gives 31131014.

It is a congruent number.

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, 3827 + ... + 8769.

It is an arithmetic number, because the mean of its divisors is an integer number (3025728).

Almost surely, 2^31131014 is an apocalyptic number.

31131014 is a deficient number, since it is larger than the sum of its proper divisors (17280634).

31131014 is a wasteful number, since it uses less digits than its factorization.

31131014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 31131014 is about 5579.5173626399. The cubic root of 31131014 is about 314.5799861092.

Adding to 31131014 its reverse (41013113), we get a palindrome (72144127).

The spelling of 31131014 in words is "thirty-one million, one hundred thirty-one thousand, fourteen".