21132013143 has 8 divisors (see below), whose sum is σ = 28182989056. Its totient is φ = 14084523000.

The previous prime is 21132013141. The next prime is 21132013159. The reversal of 21132013143 is 34131023112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21132013143 - 2¹ = 21132013141 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 (21132013141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857263 + ... + 881568.

It is an arithmetic number, because the mean of its divisors is an integer number (3522873632).

Almost surely, 2^21132013143 is an apocalyptic number.

21132013143 is a deficient number, since it is larger than the sum of its proper divisors (7050975913).

21132013143 is a wasteful number, since it uses less digits than its factorization.

21132013143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742885.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21132013143 its reverse (34131023112), we get a palindrome (55263036255).

The spelling of 21132013143 in words is "twenty-one billion, one hundred thirty-two million, thirteen thousand, one hundred forty-three".