21232001758159 has 2 divisors, whose sum is σ = 21232001758160. Its totient is φ = 21232001758158.

The previous prime is 21232001758157. The next prime is 21232001758199. The reversal of 21232001758159 is 95185710023212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21232001758159 - 2¹ = 21232001758157 is a prime.

Together with 21232001758157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21232001758157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616000879079 + 10616000879080.

It is an arithmetic number, because the mean of its divisors is an integer number (10616000879080).

Almost surely, 2^{21232001758159} is an apocalyptic number.

21232001758159 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232001758159 is an equidigital number, since it uses as much as digits as its factorization.

21232001758159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 21232001758159 in words is "twenty-one trillion, two hundred thirty-two billion, one million, seven hundred fifty-eight thousand, one hundred fifty-nine".