31524422242 has 16 divisors (see below), whose sum is σ = 51939552960. Its totient is φ = 14283376272.

The previous prime is 31524422231. The next prime is 31524422291. The reversal of 31524422242 is 24222442513.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18033693 + ... + 18035440.

It is an arithmetic number, because the mean of its divisors is an integer number (3246222060).

Almost surely, 2^31524422242 is an apocalyptic number.

31524422242 is a deficient number, since it is larger than the sum of its proper divisors (20415130718).

31524422242 is a wasteful number, since it uses less digits than its factorization.

31524422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36069177.

The product of its digits is 30720, while the sum is 31.

Adding to 31524422242 its reverse (24222442513), we get a palindrome (55746864755).

The spelling of 31524422242 in words is "thirty-one billion, five hundred twenty-four million, four hundred twenty-two thousand, two hundred forty-two".