20432543232331 has 2 divisors, whose sum is σ = 20432543232332. Its totient is φ = 20432543232330.

The previous prime is 20432543232289. The next prime is 20432543232359. The reversal of 20432543232331 is 13323234523402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20432543232331 - 2²¹ = 20432541135179 is a prime.

It is a super-2 number, since 2×20432543232331² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20432543232371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216271616165 + 10216271616166.

It is an arithmetic number, because the mean of its divisors is an integer number (10216271616166).

Almost surely, 2^{20432543232331} is an apocalyptic number.

20432543232331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432543232331 is an equidigital number, since it uses as much as digits as its factorization.

20432543232331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 37.

Adding to 20432543232331 its reverse (13323234523402), we get a palindrome (33755777755733).

The spelling of 20432543232331 in words is "twenty trillion, four hundred thirty-two billion, five hundred forty-three million, two hundred thirty-two thousand, three hundred thirty-one".