21132333103 has 4 divisors (see below), whose sum is σ = 24151237840. Its totient is φ = 18113428368.

The previous prime is 21132333067. The next prime is 21132333113. The reversal of 21132333103 is 30133323112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21132333103 - 2²⁵ = 21098778671 is a prime.

It is a super-2 number, since 2×21132333103² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132333113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509452358 + ... + 1509452371.

It is an arithmetic number, because the mean of its divisors is an integer number (6037809460).

Almost surely, 2^21132333103 is an apocalyptic number.

21132333103 is a deficient number, since it is larger than the sum of its proper divisors (3018904737).

21132333103 is an equidigital number, since it uses as much as digits as its factorization.

21132333103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018904736.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21132333103 its reverse (30133323112), we get a palindrome (51265656215).

Subtracting 21132333103 from its reverse (30133323112), we obtain a palindrome (9000990009).

The spelling of 21132333103 in words is "twenty-one billion, one hundred thirty-two million, three hundred thirty-three thousand, one hundred three".