21033010254299 has 4 divisors (see below), whose sum is σ = 21081810742560. Its totient is φ = 20984209766040.

The previous prime is 21033010254259. The next prime is 21033010254323. The reversal of 21033010254299 is 99245201033012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21033010254299 - 2²⁰ = 21033009205723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21033010254239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24400243484 + ... + 24400244345.

It is an arithmetic number, because the mean of its divisors is an integer number (5270452685640).

Almost surely, 2^{21033010254299} is an apocalyptic number.

21033010254299 is a deficient number, since it is larger than the sum of its proper divisors (48800488261).

21033010254299 is an equidigital number, since it uses as much as digits as its factorization.

21033010254299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48800488260.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 21033010254299 in words is "twenty-one trillion, thirty-three billion, ten million, two hundred fifty-four thousand, two hundred ninety-nine".