195311302104 has 128 divisors (see below), whose sum is σ = 535519641600. Its totient is φ = 59129377920.

The previous prime is 195311302079. The next prime is 195311302111. The reversal of 195311302104 is 401203113591.

It is a congruent number.

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, 1447989 + ... + 1577115.

It is an arithmetic number, because the mean of its divisors is an integer number (4183747200).

Almost surely, 2^195311302104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195311302104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267759820800).

195311302104 is an abundant number, since it is smaller than the sum of its proper divisors (340208339496).

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

195311302104 is a wasteful number, since it uses less digits than its factorization.

195311302104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129293 (or 129289 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

Adding to 195311302104 its reverse (401203113591), we get a palindrome (596514415695).

The spelling of 195311302104 in words is "one hundred ninety-five billion, three hundred eleven million, three hundred two thousand, one hundred four".