21233111093 has 2 divisors, whose sum is σ = 21233111094. Its totient is φ = 21233111092.

The previous prime is 21233111069. The next prime is 21233111147. The reversal of 21233111093 is 39011133212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15090156964 + 6142954129 = 122842^2 + 78377^2 .

It is a cyclic number.

It is not a de Polignac number, because 21233111093 - 2⁸ = 21233110837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233101093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616555546 + 10616555547.

It is an arithmetic number, because the mean of its divisors is an integer number (10616555547).

Almost surely, 2^21233111093 is an apocalyptic number.

It is an amenable number.

21233111093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233111093 is an equidigital number, since it uses as much as digits as its factorization.

21233111093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 21233111093 in words is "twenty-one billion, two hundred thirty-three million, one hundred eleven thousand, ninety-three".