204313031 has 8 divisors (see below), whose sum is σ = 220140480. Its totient is φ = 188501472.

The previous prime is 204313027. The next prime is 204313037. The reversal of 204313031 is 130313402.

It is a happy number.

204313031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204313031 - 2² = 204313027 is a prime.

It is a super-2 number, since 2×204313031² = 83487629272813922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204313037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48050 + ... + 52128.

It is an arithmetic number, because the mean of its divisors is an integer number (27517560).

Almost surely, 2^204313031 is an apocalyptic number.

204313031 is a deficient number, since it is larger than the sum of its proper divisors (15827449).

204313031 is a wasteful number, since it uses less digits than its factorization.

204313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 204313031 is about 14293.8109334075. The cubic root of 204313031 is about 588.9774791223.

Adding to 204313031 its reverse (130313402), we get a palindrome (334626433).

The spelling of 204313031 in words is "two hundred four million, three hundred thirteen thousand, thirty-one".