232131344221 has 8 divisors (see below), whose sum is σ = 265592062080. Its totient is φ = 198745400688.

The previous prime is 232131344191. The next prime is 232131344231. The reversal of 232131344221 is 122443131232.

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 232131344221 - 2¹⁵ = 232131311453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232131344221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131344231) 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, 18686926 + ... + 18699343.

It is an arithmetic number, because the mean of its divisors is an integer number (33199007760).

Almost surely, 2^232131344221 is an apocalyptic number.

It is an amenable number.

232131344221 is a deficient number, since it is larger than the sum of its proper divisors (33460717859).

232131344221 is an equidigital number, since it uses as much as digits as its factorization.

232131344221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37387163.

The product of its digits is 6912, while the sum is 28.

Adding to 232131344221 its reverse (122443131232), we get a palindrome (354574475453).

The spelling of 232131344221 in words is "two hundred thirty-two billion, one hundred thirty-one million, three hundred forty-four thousand, two hundred twenty-one".