204342431013 has 96 divisors (see below), whose sum is σ = 351037440000. Its totient is φ = 112086374400.

The previous prime is 204342430997. The next prime is 204342431063. The reversal of 204342431013 is 310134243402.

204342431013 is a `hidden beast` number, since 2 + 0 + 4 + 342 + 4 + 310 + 1 + 3 = 666.

It is not a de Polignac number, because 204342431013 - 2⁴ = 204342430997 is a prime.

It is a super-2 number, since 2×204342431013² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204342431063) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 174501918 + ... + 174503088.

It is an arithmetic number, because the mean of its divisors is an integer number (3656640000).

Almost surely, 2^204342431013 is an apocalyptic number.

It is an amenable number.

204342431013 is a deficient number, since it is larger than the sum of its proper divisors (146695008987).

204342431013 is a wasteful number, since it uses less digits than its factorization.

204342431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 204342431013 its reverse (310134243402), we get a palindrome (514476674415).

The spelling of 204342431013 in words is "two hundred four billion, three hundred forty-two million, four hundred thirty-one thousand, thirteen".