20313120202 has 48 divisors (see below), whose sum is σ = 31996247400. Its totient is φ = 9670512000.

The previous prime is 20313120181. The next prime is 20313120221. The reversal of 20313120202 is 20202131302.

It can be written as a sum of positive squares in 4 ways, for example, as 15615251521 + 4697868681 = 124961^2 + 68541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52218624 + ... + 52219012.

Almost surely, 2^20313120202 is an apocalyptic number.

20313120202 is a deficient number, since it is larger than the sum of its proper divisors (11683127198).

20313120202 is a wasteful number, since it uses less digits than its factorization.

20313120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20313120202 its reverse (20202131302), we get a palindrome (40515251504).

The spelling of 20313120202 in words is "twenty billion, three hundred thirteen million, one hundred twenty thousand, two hundred two".