31503044112 has 40 divisors (see below), whose sum is σ = 81393091104. Its totient is φ = 10499695104.

The previous prime is 31503044017. The next prime is 31503044129. The reversal of 31503044112 is 21144030513.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 391528 + ... + 465080.

Almost surely, 2^31503044112 is an apocalyptic number.

It is an amenable number.

31503044112 is an abundant number, since it is smaller than the sum of its proper divisors (49890046992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31503044112 is a wasteful number, since it uses less digits than its factorization.

31503044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82487 (or 82481 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31503044112 its reverse (21144030513), we get a palindrome (52647074625).

The spelling of 31503044112 in words is "thirty-one billion, five hundred three million, forty-four thousand, one hundred twelve".