231423122220204 has 24 divisors (see below), whose sum is σ = 540829699059888. Its totient is φ = 77020695900160.

The previous prime is 231423122220107. The next prime is 231423122220209. The reversal of 231423122220204 is 402022221324132.

It is a super-2 number, since 2×231423122220204² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231423122220209) 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, 15043096977 + ... + 15043112360.

It is an arithmetic number, because the mean of its divisors is an integer number (22534570794162).

Almost surely, 2^{231423122220204} is an apocalyptic number.

It is an amenable number.

231423122220204 is an abundant number, since it is smaller than the sum of its proper divisors (309406576839684).

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

231423122220204 is a wasteful number, since it uses less digits than its factorization.

231423122220204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30086209985 (or 30086209983 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 231423122220204 its reverse (402022221324132), we get a palindrome (633445343544336).

The spelling of 231423122220204 in words is "two hundred thirty-one trillion, four hundred twenty-three billion, one hundred twenty-two million, two hundred twenty thousand, two hundred four".