31341120 has 56 divisors (see below), whose sum is σ = 99511104. Its totient is φ = 8357376.

The previous prime is 31341113. The next prime is 31341137. The reversal of 31341120 is 2114313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 31341120.

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, 15364 + ... + 17283.

It is an arithmetic number, because the mean of its divisors is an integer number (1776984).

Almost surely, 2^31341120 is an apocalyptic number.

31341120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31341120 is an abundant number, since it is smaller than the sum of its proper divisors (68169984).

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

31341120 is a wasteful number, since it uses less digits than its factorization.

31341120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32667 (or 32657 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31341120 is about 5598.3140319207. The cubic root of 31341120 is about 315.2861094153.

Adding to 31341120 its reverse (2114313), we get a palindrome (33455433).

The spelling of 31341120 in words is "thirty-one million, three hundred forty-one thousand, one hundred twenty".