31112242 has 16 divisors (see below), whose sum is σ = 53865792. Its totient is φ = 13201200.

The previous prime is 31112209. The next prime is 31112281. The reversal of 31112242 is 24221113.

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, 9588 + ... + 12415.

It is an arithmetic number, because the mean of its divisors is an integer number (3366612).

Almost surely, 2^31112242 is an apocalyptic number.

31112242 is a deficient number, since it is larger than the sum of its proper divisors (22753550).

31112242 is a wasteful number, since it uses less digits than its factorization.

31112242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22113.

The product of its digits is 96, while the sum is 16.

The square root of 31112242 is about 5577.8348846125. The cubic root of 31112242 is about 314.5167428233.

Adding to 31112242 its reverse (24221113), we get a palindrome (55333355).

The spelling of 31112242 in words is "thirty-one million, one hundred twelve thousand, two hundred forty-two".