110011993318621 has 2 divisors, whose sum is σ = 110011993318622. Its totient is φ = 110011993318620.

The previous prime is 110011993318561. The next prime is 110011993318631. The reversal of 110011993318621 is 126813399110011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103385173622500 + 6626819696121 = 10167850^2 + 2574261^2 .

It is a cyclic number.

It is not a de Polignac number, because 110011993318621 - 2⁹ = 110011993318109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110011993318631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55005996659310 + 55005996659311.

It is an arithmetic number, because the mean of its divisors is an integer number (55005996659311).

Almost surely, 2^{110011993318621} is an apocalyptic number.

It is an amenable number.

110011993318621 is a deficient number, since it is larger than the sum of its proper divisors (1).

110011993318621 is an equidigital number, since it uses as much as digits as its factorization.

110011993318621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 46.

The spelling of 110011993318621 in words is "one hundred ten trillion, eleven billion, nine hundred ninety-three million, three hundred eighteen thousand, six hundred twenty-one".