31031104144 has 20 divisors (see below), whose sum is σ = 60290248320. Its totient is φ = 15472330400.

The previous prime is 31031104141. The next prime is 31031104157. The reversal of 31031104144 is 44140113013.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31031104141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695432 + ... + 2706919.

It is an arithmetic number, because the mean of its divisors is an integer number (3014512416).

Almost surely, 2^31031104144 is an apocalyptic number.

It is an amenable number.

31031104144 is a deficient number, since it is larger than the sum of its proper divisors (29259144176).

31031104144 is a wasteful number, since it uses less digits than its factorization.

31031104144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5402718 (or 5402712 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31031104144 its reverse (44140113013), we get a palindrome (75171217157).

The spelling of 31031104144 in words is "thirty-one billion, thirty-one million, one hundred four thousand, one hundred forty-four".