204013131 has 16 divisors (see below), whose sum is σ = 311097600. Its totient is φ = 116496288.

The previous prime is 204013129. The next prime is 204013133. The reversal of 204013131 is 131310402.

It is an interprime number because it is at equal distance from previous prime (204013129) and next prime (204013133).

It is not a de Polignac number, because 204013131 - 2¹ = 204013129 is a prime.

It is a super-2 number, since 2×204013131² = 83242715240846322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204013131.

It is not an unprimeable number, because it can be changed into a prime (204013133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39105 + ... + 44013.

It is an arithmetic number, because the mean of its divisors is an integer number (19443600).

Almost surely, 2^204013131 is an apocalyptic number.

204013131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204013131 is a deficient number, since it is larger than the sum of its proper divisors (107084469).

204013131 is a wasteful number, since it uses less digits than its factorization.

204013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 204013131 is about 14283.3165266334. The cubic root of 204013131 is about 588.6891619918.

Adding to 204013131 its reverse (131310402), we get a palindrome (335323533).

It can be divided in two parts, 20401 and 3131, that added together give a palindrome (23532).

The spelling of 204013131 in words is "two hundred four million, thirteen thousand, one hundred thirty-one".