231300342221 has 16 divisors (see below), whose sum is σ = 250936620480. Its totient is φ = 211928123520.

The previous prime is 231300342167. The next prime is 231300342223. The reversal of 231300342221 is 122243003132.

It is a cyclic number.

It is not a de Polignac number, because 231300342221 - 2⁶ = 231300342157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231300342223) 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, 11484266 + ... + 11504388.

It is an arithmetic number, because the mean of its divisors is an integer number (15683538780).

Almost surely, 2^231300342221 is an apocalyptic number.

It is an amenable number.

231300342221 is a deficient number, since it is larger than the sum of its proper divisors (19636278259).

231300342221 is a wasteful number, since it uses less digits than its factorization.

231300342221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26636.

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

Adding to 231300342221 its reverse (122243003132), we get a palindrome (353543345353).

The spelling of 231300342221 in words is "two hundred thirty-one billion, three hundred million, three hundred forty-two thousand, two hundred twenty-one".