31043052 has 18 divisors (see below), whose sum is σ = 78470028. Its totient is φ = 10347672.

The previous prime is 31043041. The next prime is 31043081. The reversal of 31043052 is 25034013.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 431118 + ... + 431189.

It is an arithmetic number, because the mean of its divisors is an integer number (4359446).

Almost surely, 2^31043052 is an apocalyptic number.

It is an amenable number.

31043052 is an abundant number, since it is smaller than the sum of its proper divisors (47426976).

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

31043052 is a wasteful number, since it uses less digits than its factorization.

31043052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862317 (or 862312 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 31043052 is about 5571.6292051787. The cubic root of 31043052 is about 314.2834202509.

Adding to 31043052 its reverse (25034013), we get a palindrome (56077065).

The spelling of 31043052 in words is "thirty-one million, forty-three thousand, fifty-two".