231442454321 has 8 divisors (see below), whose sum is σ = 251532379560. Its totient is φ = 211679194752.

The previous prime is 231442454311. The next prime is 231442454377. The reversal of 231442454321 is 123454244132.

It can be written as a sum of positive squares in 4 ways, for example, as 86518339600 + 144924114721 = 294140^2 + 380689^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 231442454321 - 2²⁶ = 231375345457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231442454311) 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, 81664940 + ... + 81667773.

It is an arithmetic number, because the mean of its divisors is an integer number (31441547445).

Almost surely, 2^231442454321 is an apocalyptic number.

It is an amenable number.

231442454321 is a deficient number, since it is larger than the sum of its proper divisors (20089925239).

231442454321 is a wasteful number, since it uses less digits than its factorization.

231442454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163332835.

The product of its digits is 92160, while the sum is 35.

Adding to 231442454321 its reverse (123454244132), we get a palindrome (354896698453).

The spelling of 231442454321 in words is "two hundred thirty-one billion, four hundred forty-two million, four hundred fifty-four thousand, three hundred twenty-one".