20312323210 has 16 divisors (see below), whose sum is σ = 36614351592. Its totient is φ = 8113336000.

The previous prime is 20312323181. The next prime is 20312323237. The reversal of 20312323210 is 1232321302.

It can be written as a sum of positive squares in 4 ways, for example, as 17699375521 + 2612947689 = 133039^2 + 51117^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1441801 + ... + 1455820.

Almost surely, 2^20312323210 is an apocalyptic number.

20312323210 is a deficient number, since it is larger than the sum of its proper divisors (16302028382).

20312323210 is a wasteful number, since it uses less digits than its factorization.

20312323210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898329.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20312323210 its reverse (1232321302), we get a palindrome (21544644512).

The spelling of 20312323210 in words is "twenty billion, three hundred twelve million, three hundred twenty-three thousand, two hundred ten".