21132212303003 has 16 divisors (see below), whose sum is σ = 22256527656000. Its totient is φ = 20025077592960.

The previous prime is 21132212302987. The next prime is 21132212303039. The reversal of 21132212303003 is 30030321223112.

It is not a de Polignac number, because 21132212303003 - 2⁴ = 21132212302987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21132212303003.

It is not an unprimeable number, because it can be changed into a prime (21132212323003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16814633 + ... + 18027653.

It is an arithmetic number, because the mean of its divisors is an integer number (1391032978500).

Almost surely, 2^{21132212303003} is an apocalyptic number.

21132212303003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21132212303003 is a deficient number, since it is larger than the sum of its proper divisors (1124315352997).

21132212303003 is a wasteful number, since it uses less digits than its factorization.

21132212303003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220102.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21132212303003 its reverse (30030321223112), we get a palindrome (51162533526115).

The spelling of 21132212303003 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred twelve million, three hundred three thousand, three".