31011042 has 32 divisors (see below), whose sum is σ = 63825408. Its totient is φ = 10040576.

The previous prime is 31011011. The next prime is 31011089. The reversal of 31011042 is 24011013.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35503 + ... + 36365.

It is an arithmetic number, because the mean of its divisors is an integer number (1994544).

Almost surely, 2^31011042 is an apocalyptic number.

31011042 is an abundant number, since it is smaller than the sum of its proper divisors (32814366).

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

31011042 is a wasteful number, since it uses less digits than its factorization.

31011042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 31011042 is about 5568.7558754178. The cubic root of 31011042 is about 314.1753587956.

Adding to 31011042 its reverse (24011013), we get a palindrome (55022055).

The spelling of 31011042 in words is "thirty-one million, eleven thousand, forty-two".