21233232122303 has 4 divisors (see below), whose sum is σ = 21233567554848. Its totient is φ = 21232896689760.

The previous prime is 21233232122299. The next prime is 21233232122327. The reversal of 21233232122303 is 30322123233212.

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

It is a cyclic number.

It is not a de Polignac number, because 21233232122303 - 2² = 21233232122299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233232112303) 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, 167621303 + ... + 167747928.

It is an arithmetic number, because the mean of its divisors is an integer number (5308391888712).

Almost surely, 2^{21233232122303} is an apocalyptic number.

21233232122303 is a deficient number, since it is larger than the sum of its proper divisors (335432545).

21233232122303 is an equidigital number, since it uses as much as digits as its factorization.

21233232122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335432544.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21233232122303 its reverse (30322123233212), we get a palindrome (51555355355515).

The spelling of 21233232122303 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred thirty-two million, one hundred twenty-two thousand, three hundred three".