31120144504 has 32 divisors (see below), whose sum is σ = 59502930480. Its totient is φ = 15255696384.

The previous prime is 31120144469. The next prime is 31120144577. The reversal of 31120144504 is 40544102113.

It is a congruent number.

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, 104367 + ... + 270430.

Almost surely, 2^31120144504 is an apocalyptic number.

It is an amenable number.

31120144504 is a deficient number, since it is larger than the sum of its proper divisors (28382785976).

31120144504 is a wasteful number, since it uses less digits than its factorization.

31120144504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375007 (or 375003 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 31120144504 its reverse (40544102113), we get a palindrome (71664246617).

The spelling of 31120144504 in words is "thirty-one billion, one hundred twenty million, one hundred forty-four thousand, five hundred four".