21363048233 has 2 divisors, whose sum is σ = 21363048234. Its totient is φ = 21363048232.

The previous prime is 21363048173. The next prime is 21363048253. The reversal of 21363048233 is 33284036312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17094778009 + 4268270224 = 130747^2 + 65332^2 .

It is a cyclic number.

It is not a de Polignac number, because 21363048233 - 2⁶ = 21363048169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21363048193 and 21363048202.

It is not a weakly prime, because it can be changed into another prime (21363048253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10681524116 + 10681524117.

It is an arithmetic number, because the mean of its divisors is an integer number (10681524117).

Almost surely, 2^21363048233 is an apocalyptic number.

It is an amenable number.

21363048233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21363048233 is an equidigital number, since it uses as much as digits as its factorization.

21363048233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 21363048233 in words is "twenty-one billion, three hundred sixty-three million, forty-eight thousand, two hundred thirty-three".