204013331 has 2 divisors, whose sum is σ = 204013332. Its totient is φ = 204013330.

The previous prime is 204013297. The next prime is 204013339. The reversal of 204013331 is 133310402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204013331 - 2¹⁰ = 204012307 is a prime.

It is a super-2 number, since 2×204013331² = 83242878451431122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204013339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102006665 + 102006666.

It is an arithmetic number, because the mean of its divisors is an integer number (102006666).

Almost surely, 2^204013331 is an apocalyptic number.

204013331 is a deficient number, since it is larger than the sum of its proper divisors (1).

204013331 is an equidigital number, since it uses as much as digits as its factorization.

204013331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 204013331 is about 14283.3235278068. The cubic root of 204013331 is about 588.6893543614.

Adding to 204013331 its reverse (133310402), we get a palindrome (337323733).

It can be divided in two parts, 20401 and 3331, that added together give a palindrome (23732).

The spelling of 204013331 in words is "two hundred four million, thirteen thousand, three hundred thirty-one".