21132201143 has 4 divisors (see below), whose sum is σ = 21399697440. Its totient is φ = 20864704848.

The previous prime is 21132201137. The next prime is 21132201193. The reversal of 21132201143 is 34110223112.

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 21132201143 - 2¹⁰ = 21132200119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132201113) 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, 133748030 + ... + 133748187.

It is an arithmetic number, because the mean of its divisors is an integer number (5349924360).

Almost surely, 2^21132201143 is an apocalyptic number.

21132201143 is a deficient number, since it is larger than the sum of its proper divisors (267496297).

21132201143 is an equidigital number, since it uses as much as digits as its factorization.

21132201143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267496296.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21132201143 its reverse (34110223112), we get a palindrome (55242424255).

The spelling of 21132201143 in words is "twenty-one billion, one hundred thirty-two million, two hundred one thousand, one hundred forty-three".