231414431013221 has 8 divisors (see below), whose sum is σ = 245191161872664. Its totient is φ = 217655935406080.

The previous prime is 231414431013167. The next prime is 231414431013253. The reversal of 231414431013221 is 122310134414132.

It can be written as a sum of positive squares in 4 ways, for example, as 32101448282596 + 199312982730625 = 5665814^2 + 14117825^2 .

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 231414431013221 - 2¹⁰ = 231414431012197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231414431043221) 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, 4558786940 + ... + 4558837701.

It is an arithmetic number, because the mean of its divisors is an integer number (30648895234083).

Almost surely, 2^{231414431013221} is an apocalyptic number.

It is an amenable number.

231414431013221 is a deficient number, since it is larger than the sum of its proper divisors (13776730859443).

231414431013221 is a wasteful number, since it uses less digits than its factorization.

231414431013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117626151.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 231414431013221 its reverse (122310134414132), we get a palindrome (353724565427353).

The spelling of 231414431013221 in words is "two hundred thirty-one trillion, four hundred fourteen billion, four hundred thirty-one million, thirteen thousand, two hundred twenty-one".