31020113002 has 8 divisors (see below), whose sum is σ = 47665051812. Its totient is φ = 15131762400.

The previous prime is 31020112999. The next prime is 31020113063. The reversal of 31020113002 is 20031102013.

It can be written as a sum of positive squares in 2 ways, for example, as 22804322121 + 8215790881 = 151011^2 + 90641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 189146949 + ... + 189147112.

Almost surely, 2^31020113002 is an apocalyptic number.

31020113002 is a deficient number, since it is larger than the sum of its proper divisors (16644938810).

31020113002 is a wasteful number, since it uses less digits than its factorization.

31020113002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378294104.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31020113002 its reverse (20031102013), we get a palindrome (51051215015).

It can be divided in two parts, 3102011 and 3002, that added together give a palindrome (3105013).

The spelling of 31020113002 in words is "thirty-one billion, twenty million, one hundred thirteen thousand, two".