432140252021 has 2 divisors, whose sum is σ = 432140252022. Its totient is φ = 432140252020.

The previous prime is 432140251987. The next prime is 432140252023. The reversal of 432140252021 is 120252041234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431437471921 + 702780100 = 656839^2 + 26510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432140252021 is a prime.

Together with 432140252023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432140252023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216070126010 + 216070126011.

It is an arithmetic number, because the mean of its divisors is an integer number (216070126011).

Almost surely, 2^432140252021 is an apocalyptic number.

It is an amenable number.

432140252021 is a deficient number, since it is larger than the sum of its proper divisors (1).

432140252021 is an equidigital number, since it uses as much as digits as its factorization.

432140252021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 432140252021 its reverse (120252041234), we get a palindrome (552392293255).

The spelling of 432140252021 in words is "four hundred thirty-two billion, one hundred forty million, two hundred fifty-two thousand, twenty-one".