21134013329 has 32 divisors (see below), whose sum is σ = 26230834560. Its totient is φ = 16740172800.

The previous prime is 21134013317. The next prime is 21134013401. The reversal of 21134013329 is 92331043112.

It is not a de Polignac number, because 21134013329 - 2²⁰ = 21132964753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21134013829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738569 + ... + 766649.

It is an arithmetic number, because the mean of its divisors is an integer number (819713580).

Almost surely, 2^21134013329 is an apocalyptic number.

It is an amenable number.

21134013329 is a deficient number, since it is larger than the sum of its proper divisors (5096821231).

21134013329 is a wasteful number, since it uses less digits than its factorization.

21134013329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28401.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 21134013329 in words is "twenty-one billion, one hundred thirty-four million, thirteen thousand, three hundred twenty-nine".