21142132203 has 8 divisors (see below), whose sum is σ = 28294304400. Its totient is φ = 14042357408.

The previous prime is 21142132133. The next prime is 21142132211. The reversal of 21142132203 is 30223124112.

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

It is a cyclic number.

It is not a de Polignac number, because 21142132203 - 2²⁵ = 21108577771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21142132203.

It is not an unprimeable number, because it can be changed into a prime (21142132213) 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, 13098408 + ... + 13100021.

It is an arithmetic number, because the mean of its divisors is an integer number (3536788050).

Almost surely, 2^21142132203 is an apocalyptic number.

21142132203 is a deficient number, since it is larger than the sum of its proper divisors (7152172197).

21142132203 is a wasteful number, since it uses less digits than its factorization.

21142132203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26198701.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21142132203 its reverse (30223124112), we get a palindrome (51365256315).

The spelling of 21142132203 in words is "twenty-one billion, one hundred forty-two million, one hundred thirty-two thousand, two hundred three".