21301020233093 has 2 divisors, whose sum is σ = 21301020233094. Its totient is φ = 21301020233092.

The previous prime is 21301020233089. The next prime is 21301020233147. The reversal of 21301020233093 is 39033202010312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15511640464324 + 5789379768769 = 3938482^2 + 2406113^2 .

It is a cyclic number.

It is not a de Polignac number, because 21301020233093 - 2² = 21301020233089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21301020233393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650510116546 + 10650510116547.

It is an arithmetic number, because the mean of its divisors is an integer number (10650510116547).

Almost surely, 2^{21301020233093} is an apocalyptic number.

It is an amenable number.

21301020233093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21301020233093 is an equidigital number, since it uses as much as digits as its factorization.

21301020233093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 21301020233093 in words is "twenty-one trillion, three hundred one billion, twenty million, two hundred thirty-three thousand, ninety-three".