3311111091817 has 2 divisors, whose sum is σ = 3311111091818. Its totient is φ = 3311111091816.

The previous prime is 3311111091809. The next prime is 3311111091877. The reversal of 3311111091817 is 7181901111133.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2539882877401 + 771228214416 = 1593701^2 + 878196^2 .

It is a cyclic number.

It is not a de Polignac number, because 3311111091817 - 2³ = 3311111091809 is a prime.

It is a super-2 number, since 2×3311111091817² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3311111091877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655555545908 + 1655555545909.

It is an arithmetic number, because the mean of its divisors is an integer number (1655555545909).

Almost surely, 2^{3311111091817} is an apocalyptic number.

It is an amenable number.

3311111091817 is a deficient number, since it is larger than the sum of its proper divisors (1).

3311111091817 is an equidigital number, since it uses as much as digits as its factorization.

3311111091817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 37.

The spelling of 3311111091817 in words is "three trillion, three hundred eleven billion, one hundred eleven million, ninety-one thousand, eight hundred seventeen".