432142031221 has 4 divisors (see below), whose sum is σ = 438591912352. Its totient is φ = 425692150092.

The previous prime is 432142031159. The next prime is 432142031231. The reversal of 432142031221 is 122130241234.

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 432142031221 - 2⁹ = 432142030709 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 (432142031231) 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, 3224940465 + ... + 3224940598.

It is an arithmetic number, because the mean of its divisors is an integer number (109647978088).

Almost surely, 2^432142031221 is an apocalyptic number.

It is an amenable number.

432142031221 is a deficient number, since it is larger than the sum of its proper divisors (6449881131).

432142031221 is an equidigital number, since it uses as much as digits as its factorization.

432142031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6449881130.

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

Adding to 432142031221 its reverse (122130241234), we get a palindrome (554272272455).

The spelling of 432142031221 in words is "four hundred thirty-two billion, one hundred forty-two million, thirty-one thousand, two hundred twenty-one".