31124112003 has 128 divisors (see below), whose sum is σ = 52022476800. Its totient is φ = 18318009600.

The previous prime is 31124112001. The next prime is 31124112011. The reversal of 31124112003 is 30021142113.

It is not a de Polignac number, because 31124112003 - 2¹ = 31124112001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31124112001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37096258 + ... + 37097096.

It is an arithmetic number, because the mean of its divisors is an integer number (406425600).

Almost surely, 2^31124112003 is an apocalyptic number.

31124112003 is a deficient number, since it is larger than the sum of its proper divisors (20898364797).

31124112003 is a wasteful number, since it uses less digits than its factorization.

31124112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31124112003 its reverse (30021142113), we get a palindrome (61145254116).

The spelling of 31124112003 in words is "thirty-one billion, one hundred twenty-four million, one hundred twelve thousand, three".