20312115050 has 24 divisors (see below), whose sum is σ = 38154608172. Its totient is φ = 8044400000.

The previous prime is 20312115001. The next prime is 20312115119. The reversal of 20312115050 is 5051121302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 18351308089 + 1960806961 = 135467^2 + 44281^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2006051 + ... + 2016150.

Almost surely, 2^20312115050 is an apocalyptic number.

20312115050 is a deficient number, since it is larger than the sum of its proper divisors (17842493122).

20312115050 is a wasteful number, since it uses less digits than its factorization.

20312115050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022314 (or 4022309 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 20312115050 its reverse (5051121302), we get a palindrome (25363236352).

The spelling of 20312115050 in words is "twenty billion, three hundred twelve million, one hundred fifteen thousand, fifty".