31103225616 has 40 divisors (see below), whose sum is σ = 81549261664. Its totient is φ = 10212998400.

The previous prime is 31103225599. The next prime is 31103225617. The reversal of 31103225616 is 61652230113.

It is not an unprimeable number, because it can be changed into a prime (31103225617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4832485 + ... + 4838916.

Almost surely, 2^31103225616 is an apocalyptic number.

It is an amenable number.

31103225616 is an abundant number, since it is smaller than the sum of its proper divisors (50446036048).

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

31103225616 is a wasteful number, since it uses less digits than its factorization.

31103225616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671479 (or 9671473 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 31103225616 its reverse (61652230113), we get a palindrome (92755455729).

The spelling of 31103225616 in words is "thirty-one billion, one hundred three million, two hundred twenty-five thousand, six hundred sixteen".