231614041655221 has 4 divisors (see below), whose sum is σ = 231614679106944. Its totient is φ = 231613404203500.

The previous prime is 231614041655201. The next prime is 231614041655233. The reversal of 231614041655221 is 122556140416132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231614041655221 - 2²⁵ = 231614008100789 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 (231614041655201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318180535 + ... + 318907636.

It is an arithmetic number, because the mean of its divisors is an integer number (57903669776736).

Almost surely, 2^{231614041655221} is an apocalyptic number.

It is an amenable number.

231614041655221 is a deficient number, since it is larger than the sum of its proper divisors (637451723).

231614041655221 is an equidigital number, since it uses as much as digits as its factorization.

231614041655221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637451722.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 231614041655221 in words is "two hundred thirty-one trillion, six hundred fourteen billion, forty-one million, six hundred fifty-five thousand, two hundred twenty-one".