232140431221 has 4 divisors (see below), whose sum is σ = 242233493472. Its totient is φ = 222047368972.

The previous prime is 232140431207. The next prime is 232140431231. The reversal of 232140431221 is 122134041232.

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 232140431221 - 2¹¹ = 232140429173 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 (232140431231) 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, 5046531091 + ... + 5046531136.

It is an arithmetic number, because the mean of its divisors is an integer number (60558373368).

Almost surely, 2^232140431221 is an apocalyptic number.

It is an amenable number.

232140431221 is a deficient number, since it is larger than the sum of its proper divisors (10093062251).

232140431221 is a wasteful number, since it uses less digits than its factorization.

232140431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093062250.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 232140431221 its reverse (122134041232), we get a palindrome (354274472453).

The spelling of 232140431221 in words is "two hundred thirty-two billion, one hundred forty million, four hundred thirty-one thousand, two hundred twenty-one".