108331216813 has 2 divisors, whose sum is σ = 108331216814. Its totient is φ = 108331216812.

The previous prime is 108331216793. The next prime is 108331216817. The reversal of 108331216813 is 318612133801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83869318404 + 24461898409 = 289602^2 + 156403^2 .

It is a cyclic number.

It is not a de Polignac number, because 108331216813 - 2⁵ = 108331216781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108331216817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54165608406 + 54165608407.

It is an arithmetic number, because the mean of its divisors is an integer number (54165608407).

Almost surely, 2^108331216813 is an apocalyptic number.

It is an amenable number.

108331216813 is a deficient number, since it is larger than the sum of its proper divisors (1).

108331216813 is an equidigital number, since it uses as much as digits as its factorization.

108331216813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 108331216813 in words is "one hundred eight billion, three hundred thirty-one million, two hundred sixteen thousand, eight hundred thirteen".