21132654516303 has 16 divisors (see below), whose sum is σ = 30849375559296. Its totient is φ = 12761432324640.

The previous prime is 21132654516301. The next prime is 21132654516373. The reversal of 21132654516303 is 30361545623112.

It is a happy number.

It is not a de Polignac number, because 21132654516303 - 2¹ = 21132654516301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132654516301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1155917701 + ... + 1155935982.

It is an arithmetic number, because the mean of its divisors is an integer number (1928085972456).

Almost surely, 2^{21132654516303} is an apocalyptic number.

21132654516303 is a deficient number, since it is larger than the sum of its proper divisors (9716721042993).

21132654516303 is a wasteful number, since it uses less digits than its factorization.

21132654516303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311853974.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 21132654516303 in words is "twenty-one trillion, one hundred thirty-two billion, six hundred fifty-four million, five hundred sixteen thousand, three hundred three".