21113303093 has 2 divisors, whose sum is σ = 21113303094. Its totient is φ = 21113303092.

The previous prime is 21113303059. The next prime is 21113303117. The reversal of 21113303093 is 39030331112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20714981329 + 398321764 = 143927^2 + 19958^2 .

It is a cyclic number.

It is not a de Polignac number, because 21113303093 - 2¹⁰ = 21113302069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21113303593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556651546 + 10556651547.

It is an arithmetic number, because the mean of its divisors is an integer number (10556651547).

Almost surely, 2^21113303093 is an apocalyptic number.

It is an amenable number.

21113303093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113303093 is an equidigital number, since it uses as much as digits as its factorization.

21113303093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 21113303093 in words is "twenty-one billion, one hundred thirteen million, three hundred three thousand, ninety-three".