21132203133 has 8 divisors (see below), whose sum is σ = 28182426496. Its totient is φ = 14085057600.

The previous prime is 21132203129. The next prime is 21132203153. The reversal of 21132203133 is 33130223112.

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

It is not a de Polignac number, because 21132203133 - 2² = 21132203129 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 (21132203153) 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, 753388 + ... + 780933.

It is an arithmetic number, because the mean of its divisors is an integer number (3522803312).

Almost surely, 2^21132203133 is an apocalyptic number.

It is an amenable number.

21132203133 is a deficient number, since it is larger than the sum of its proper divisors (7050223363).

21132203133 is a wasteful number, since it uses less digits than its factorization.

21132203133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538915.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21132203133 its reverse (33130223112), we get a palindrome (54262426245).

The spelling of 21132203133 in words is "twenty-one billion, one hundred thirty-two million, two hundred three thousand, one hundred thirty-three".