21324303033 has 16 divisors (see below), whose sum is σ = 32017723392. Its totient is φ = 12506922000.

The previous prime is 21324303023. The next prime is 21324303067. The reversal of 21324303033 is 33030342312.

It is a happy number.

It is not a de Polignac number, because 21324303033 - 2⁴ = 21324303017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21324302994 and 21324303012.

It is not an unprimeable number, because it can be changed into a prime (21324303023) 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, 10421413 + ... + 10423458.

It is an arithmetic number, because the mean of its divisors is an integer number (2001107712).

Almost surely, 2^21324303033 is an apocalyptic number.

It is an amenable number.

21324303033 is a deficient number, since it is larger than the sum of its proper divisors (10693420359).

21324303033 is a wasteful number, since it uses less digits than its factorization.

21324303033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20844916.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21324303033 its reverse (33030342312), we get a palindrome (54354645345).

The spelling of 21324303033 in words is "twenty-one billion, three hundred twenty-four million, three hundred three thousand, thirty-three".