31020013030 has 16 divisors (see below), whose sum is σ = 55838066544. Its totient is φ = 12407551200.

The previous prime is 31020013021. The next prime is 31020013069. The reversal of 31020013030 is 3031002013.

It is a self number, because there is not a number n which added to its sum of digits gives 31020013030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424705 + ... + 492355.

It is an arithmetic number, because the mean of its divisors is an integer number (3489879159).

Almost surely, 2^31020013030 is an apocalyptic number.

31020013030 is a deficient number, since it is larger than the sum of its proper divisors (24818053514).

31020013030 is a wasteful number, since it uses less digits than its factorization.

31020013030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113511.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 31020013030 its reverse (3031002013), we get a palindrome (34051015043).

The spelling of 31020013030 in words is "thirty-one billion, twenty million, thirteen thousand, thirty".