21034130299 has 32 divisors (see below), whose sum is σ = 26623779840. Its totient is φ = 16175382912.

The previous prime is 21034130279. The next prime is 21034130339. The reversal of 21034130299 is 99203143012.

It is not a de Polignac number, because 21034130299 - 2⁵ = 21034130267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21034130219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495682 + ... + 536440.

It is an arithmetic number, because the mean of its divisors is an integer number (831993120).

Almost surely, 2^21034130299 is an apocalyptic number.

21034130299 is a deficient number, since it is larger than the sum of its proper divisors (5589649541).

21034130299 is a wasteful number, since it uses less digits than its factorization.

21034130299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40939.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 21034130299 in words is "twenty-one billion, thirty-four million, one hundred thirty thousand, two hundred ninety-nine".