31004224042 has 16 divisors (see below), whose sum is σ = 50762080512. Its totient is φ = 14085080320.

The previous prime is 31004224033. The next prime is 31004224063. The reversal of 31004224042 is 24042240013.

It is a happy number.

It is a super-2 number, since 2×31004224042² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346423 + ... + 426634.

It is an arithmetic number, because the mean of its divisors is an integer number (3172630032).

Almost surely, 2^31004224042 is an apocalyptic number.

31004224042 is a deficient number, since it is larger than the sum of its proper divisors (19757856470).

31004224042 is a wasteful number, since it uses less digits than its factorization.

31004224042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774893.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 31004224042 its reverse (24042240013), we get a palindrome (55046464055).

It can be divided in two parts, 310042 and 24042, that added together give a square (334084 = 578²).

The spelling of 31004224042 in words is "thirty-one billion, four million, two hundred twenty-four thousand, forty-two".