204041020031 has 64 divisors (see below), whose sum is σ = 235602432000. Its totient is φ = 175610198016.

The previous prime is 204041019991. The next prime is 204041020033. The reversal of 204041020031 is 130020140402.

It is a de Polignac number, because none of the positive numbers 2^k-204041020031 is a prime.

It is a super-2 number, since 2×204041020031² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 204041019991 and 204041020009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204041020033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222024590 + ... + 222025508.

It is an arithmetic number, because the mean of its divisors is an integer number (3681288000).

Almost surely, 2^204041020031 is an apocalyptic number.

204041020031 is a deficient number, since it is larger than the sum of its proper divisors (31561411969).

204041020031 is a wasteful number, since it uses less digits than its factorization.

204041020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 204041020031 its reverse (130020140402), we get a palindrome (334061160433).

The spelling of 204041020031 in words is "two hundred four billion, forty-one million, twenty thousand, thirty-one".