21033142259 has 2 divisors, whose sum is σ = 21033142260. Its totient is φ = 21033142258.

The previous prime is 21033142219. The next prime is 21033142267. The reversal of 21033142259 is 95224133012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21033142259 - 2¹² = 21033138163 is a prime.

It is not a weakly prime, because it can be changed into another prime (21033142219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516571129 + 10516571130.

It is an arithmetic number, because the mean of its divisors is an integer number (10516571130).

Almost surely, 2^21033142259 is an apocalyptic number.

21033142259 is a deficient number, since it is larger than the sum of its proper divisors (1).

21033142259 is an equidigital number, since it uses as much as digits as its factorization.

21033142259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 21033142259 in words is "twenty-one billion, thirty-three million, one hundred forty-two thousand, two hundred fifty-nine".