204302311031 has 24 divisors (see below), whose sum is σ = 256452462000. Its totient is φ = 161321594112.

The previous prime is 204302311013. The next prime is 204302311079. The reversal of 204302311031 is 130113203402.

It is not a de Polignac number, because 204302311031 - 2²⁶ = 204235202167 is a prime.

It is a super-2 number, since 2×204302311031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204302310994 and 204302311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204302311331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3506 + ... + 639231.

It is an arithmetic number, because the mean of its divisors is an integer number (10685519250).

Almost surely, 2^204302311031 is an apocalyptic number.

204302311031 is a deficient number, since it is larger than the sum of its proper divisors (52150150969).

204302311031 is a wasteful number, since it uses less digits than its factorization.

204302311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643263 (or 643256 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 204302311031 its reverse (130113203402), we get a palindrome (334415514433).

The spelling of 204302311031 in words is "two hundred four billion, three hundred two million, three hundred eleven thousand, thirty-one".