204231431022 has 32 divisors (see below), whose sum is σ = 420984868992. Its totient is φ = 66003146784.

The previous prime is 204231431017. The next prime is 204231431023. The reversal of 204231431022 is 220134132402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204231430983 and 204231431001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204231431023) 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, 1562548 + ... + 1688199.

It is an arithmetic number, because the mean of its divisors is an integer number (13155777156).

Almost surely, 2^204231431022 is an apocalyptic number.

204231431022 is an abundant number, since it is smaller than the sum of its proper divisors (216753437970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204231431022 is a wasteful number, since it uses less digits than its factorization.

204231431022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251072.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 204231431022 its reverse (220134132402), we get a palindrome (424365563424).

The spelling of 204231431022 in words is "two hundred four billion, two hundred thirty-one million, four hundred thirty-one thousand, twenty-two".