31113214 has 24 divisors (see below), whose sum is σ = 51949800. Its totient is φ = 13962960.

The previous prime is 31113211. The next prime is 31113217. The reversal of 31113214 is 41231113.

It is an interprime number because it is at equal distance from previous prime (31113211) and next prime (31113217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19312 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (2164575).

Almost surely, 2^31113214 is an apocalyptic number.

31113214 is a deficient number, since it is larger than the sum of its proper divisors (20836586).

31113214 is a wasteful number, since it uses less digits than its factorization.

31113214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1645 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 31113214 is about 5577.9220145140. The cubic root of 31113214 is about 314.5200181373.

Adding to 31113214 its reverse (41231113), we get a palindrome (72344327).

The spelling of 31113214 in words is "thirty-one million, one hundred thirteen thousand, two hundred fourteen".