21032102159 has 2 divisors, whose sum is σ = 21032102160. Its totient is φ = 21032102158.

The previous prime is 21032102149. The next prime is 21032102219. The reversal of 21032102159 is 95120123012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21032102159 - 2⁸ = 21032101903 is a prime.

It is a super-2 number, since 2×21032102159² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032102149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516051079 + 10516051080.

It is an arithmetic number, because the mean of its divisors is an integer number (10516051080).

Almost surely, 2^21032102159 is an apocalyptic number.

21032102159 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032102159 is an equidigital number, since it uses as much as digits as its factorization.

21032102159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 21032102159 in words is "twenty-one billion, thirty-two million, one hundred two thousand, one hundred fifty-nine".