20113312002 has 32 divisors (see below), whose sum is σ = 45986607744. Its totient is φ = 5744995200.

The previous prime is 20113311997. The next prime is 20113312033. The reversal of 20113312002 is 20021331102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81102 + ... + 216342.

It is an arithmetic number, because the mean of its divisors is an integer number (1437081492).

Almost surely, 2^20113312002 is an apocalyptic number.

20113312002 is an abundant number, since it is smaller than the sum of its proper divisors (25873295742).

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

20113312002 is a wasteful number, since it uses less digits than its factorization.

20113312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138794.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20113312002 its reverse (20021331102), we get a palindrome (40134643104).

The spelling of 20113312002 in words is "twenty billion, one hundred thirteen million, three hundred twelve thousand, two".