21114203233 has 2 divisors, whose sum is σ = 21114203234. Its totient is φ = 21114203232.

The previous prime is 21114203221. The next prime is 21114203267. The reversal of 21114203233 is 33230241112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17587268689 + 3526934544 = 132617^2 + 59388^2 .

It is a cyclic number.

It is not a de Polignac number, because 21114203233 - 2²⁵ = 21080648801 is a prime.

It is not a weakly prime, because it can be changed into another prime (21114203203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557101616 + 10557101617.

It is an arithmetic number, because the mean of its divisors is an integer number (10557101617).

Almost surely, 2^21114203233 is an apocalyptic number.

It is an amenable number.

21114203233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114203233 is an equidigital number, since it uses as much as digits as its factorization.

21114203233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21114203233 its reverse (33230241112), we get a palindrome (54344444345).

The spelling of 21114203233 in words is "twenty-one billion, one hundred fourteen million, two hundred three thousand, two hundred thirty-three".