21332130915 has 16 divisors (see below), whose sum is σ = 34281773568. Its totient is φ = 11327015136.

The previous prime is 21332130913. The next prime is 21332130943. The reversal of 21332130915 is 51903123312.

It is not a de Polignac number, because 21332130915 - 2¹ = 21332130913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21332130913) 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 15 ways as a sum of consecutive naturals, for example, 3129067 + ... + 3135876.

It is an arithmetic number, because the mean of its divisors is an integer number (2142610848).

Almost surely, 2^21332130915 is an apocalyptic number.

21332130915 is a deficient number, since it is larger than the sum of its proper divisors (12949642653).

21332130915 is a wasteful number, since it uses less digits than its factorization.

21332130915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265178.

The product of its (nonzero) digits is 4860, while the sum is 30.

The spelling of 21332130915 in words is "twenty-one billion, three hundred thirty-two million, one hundred thirty thousand, nine hundred fifteen".