31021112030 has 16 divisors (see below), whose sum is σ = 57136560624. Its totient is φ = 12119876160.

The previous prime is 31021112029. The next prime is 31021112047. The reversal of 31021112030 is 3021112013.

It is a junction number, because it is equal to n+sod(n) for n = 31021111996 and 31021112014.

It is a congruent number.

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, 36070631 + ... + 36071490.

It is an arithmetic number, because the mean of its divisors is an integer number (3571035039).

Almost surely, 2^31021112030 is an apocalyptic number.

31021112030 is a deficient number, since it is larger than the sum of its proper divisors (26115448594).

31021112030 is a wasteful number, since it uses less digits than its factorization.

31021112030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72142171.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31021112030 its reverse (3021112013), we get a palindrome (34042224043).

The spelling of 31021112030 in words is "thirty-one billion, twenty-one million, one hundred twelve thousand, thirty".