331100117 has 2 divisors, whose sum is σ = 331100118. Its totient is φ = 331100116.

The previous prime is 331100089. The next prime is 331100149. The reversal of 331100117 is 711001133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278189041 + 52911076 = 16679^2 + 7274^2 .

It is a cyclic number.

It is not a de Polignac number, because 331100117 - 2¹⁸ = 330837973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331100095 and 331100104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331100167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165550058 + 165550059.

It is an arithmetic number, because the mean of its divisors is an integer number (165550059).

Almost surely, 2^331100117 is an apocalyptic number.

It is an amenable number.

331100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

331100117 is an equidigital number, since it uses as much as digits as its factorization.

331100117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 331100117 is about 18196.1566546345. The cubic root of 331100117 is about 691.8093777298.

The spelling of 331100117 in words is "three hundred thirty-one million, one hundred thousand, one hundred seventeen".