21132203033 has 8 divisors (see below), whose sum is σ = 21345347016. Its totient is φ = 20919136000.

The previous prime is 21132203023. The next prime is 21132203041. The reversal of 21132203033 is 33030223112.

It can be written as a sum of positive squares in 4 ways, for example, as 8242460944 + 12889742089 = 90788^2 + 113533^2 .

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 21132203033 - 2⁶ = 21132202969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21132202996 and 21132203014.

It is not an unprimeable number, because it can be changed into a prime (21132203003) 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, 648785 + ... + 680577.

It is an arithmetic number, because the mean of its divisors is an integer number (2668168377).

Almost surely, 2^21132203033 is an apocalyptic number.

It is an amenable number.

21132203033 is a deficient number, since it is larger than the sum of its proper divisors (213143983).

21132203033 is a wasteful number, since it uses less digits than its factorization.

21132203033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38475.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21132203033 its reverse (33030223112), we get a palindrome (54162426145).

The spelling of 21132203033 in words is "twenty-one billion, one hundred thirty-two million, two hundred three thousand, thirty-three".