204012332231 has 4 divisors (see below), whose sum is σ = 204087699672. Its totient is φ = 203936964792.

The previous prime is 204012332179. The next prime is 204012332311. The reversal of 204012332231 is 132233210402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204012332231 is a prime.

It is a super-2 number, since 2×204012332231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204012332197 and 204012332206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204012332831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37679660 + ... + 37685073.

It is an arithmetic number, because the mean of its divisors is an integer number (51021924918).

Almost surely, 2^204012332231 is an apocalyptic number.

204012332231 is a deficient number, since it is larger than the sum of its proper divisors (75367441).

204012332231 is an equidigital number, since it uses as much as digits as its factorization.

204012332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75367440.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 204012332231 its reverse (132233210402), we get a palindrome (336245542633).

The spelling of 204012332231 in words is "two hundred four billion, twelve million, three hundred thirty-two thousand, two hundred thirty-one".