204122031 has 8 divisors (see below), whose sum is σ = 272795904. Its totient is φ = 135764760.

The previous prime is 204122021. The next prime is 204122057. The reversal of 204122031 is 130221402.

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

It is not a de Polignac number, because 204122031 - 2¹⁰ = 204121007 is a prime.

It is a super-2 number, since 2×204122031² = 83331607079129922, 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 204122031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204122021) 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, 77641 + ... + 80226.

It is an arithmetic number, because the mean of its divisors is an integer number (34099488).

Almost surely, 2^204122031 is an apocalyptic number.

204122031 is a deficient number, since it is larger than the sum of its proper divisors (68673873).

204122031 is a wasteful number, since it uses less digits than its factorization.

204122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158301.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204122031 is about 14287.1281578909. The cubic root of 204122031 is about 588.7938886598.

Adding to 204122031 its reverse (130221402), we get a palindrome (334343433).

The spelling of 204122031 in words is "two hundred four million, one hundred twenty-two thousand, thirty-one".