20310310195 has 32 divisors (see below), whose sum is σ = 29105372160. Its totient is φ = 13303128960.

The previous prime is 20310310169. The next prime is 20310310217. The reversal of 20310310195 is 59101301302.

It is a de Polignac number, because none of the positive numbers 2^k-20310310195 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577825 + ... + 611965.

It is an arithmetic number, because the mean of its divisors is an integer number (909542880).

Almost surely, 2^20310310195 is an apocalyptic number.

20310310195 is a deficient number, since it is larger than the sum of its proper divisors (8795061965).

20310310195 is a wasteful number, since it uses less digits than its factorization.

20310310195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34915.

The product of its (nonzero) digits is 810, while the sum is 25.

Adding to 20310310195 its reverse (59101301302), we get a palindrome (79411611497).

The spelling of 20310310195 in words is "twenty billion, three hundred ten million, three hundred ten thousand, one hundred ninety-five".