21323203032233 has 4 divisors (see below), whose sum is σ = 21401886438528. Its totient is φ = 21244519625940.

The previous prime is 21323203032167. The next prime is 21323203032283. The reversal of 21323203032233 is 33223030232312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21323203032233 - 2³⁶ = 21254483555497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21323203032196 and 21323203032205.

It is not an unprimeable number, because it can be changed into a prime (21323203032283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39341702741 + ... + 39341703282.

It is an arithmetic number, because the mean of its divisors is an integer number (5350471609632).

Almost surely, 2^{21323203032233} is an apocalyptic number.

It is an amenable number.

21323203032233 is a deficient number, since it is larger than the sum of its proper divisors (78683406295).

21323203032233 is an equidigital number, since it uses as much as digits as its factorization.

21323203032233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78683406294.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 21323203032233 its reverse (33223030232312), we get a palindrome (54546233264545).

The spelling of 21323203032233 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred three million, thirty-two thousand, two hundred thirty-three".