31120042244 has 48 divisors (see below), whose sum is σ = 56143886400. Its totient is φ = 15088482816.

The previous prime is 31120042231. The next prime is 31120042313. The reversal of 31120042244 is 44224002113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4103384 + ... + 4110960.

It is an arithmetic number, because the mean of its divisors is an integer number (1169664300).

Almost surely, 2^31120042244 is an apocalyptic number.

It is an amenable number.

31120042244 is a deficient number, since it is larger than the sum of its proper divisors (25023844156).

31120042244 is a wasteful number, since it uses less digits than its factorization.

31120042244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892 (or 7890 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31120042244 its reverse (44224002113), we get a palindrome (75344044357).

The spelling of 31120042244 in words is "thirty-one billion, one hundred twenty million, forty-two thousand, two hundred forty-four".