390111111010111 has 2 divisors, whose sum is σ = 390111111010112. Its totient is φ = 390111111010110.

The previous prime is 390111111010109. The next prime is 390111111010129. The reversal of 390111111010111 is 111010111111093.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (111010111111093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390111111010111 - 2¹ = 390111111010109 is a prime.

Together with 390111111010109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390111111010711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195055555505055 + 195055555505056.

It is an arithmetic number, because the mean of its divisors is an integer number (195055555505056).

Almost surely, 2^{390111111010111} is an apocalyptic number.

390111111010111 is a deficient number, since it is larger than the sum of its proper divisors (1).

390111111010111 is an equidigital number, since it uses as much as digits as its factorization.

390111111010111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 22.

The spelling of 390111111010111 in words is "three hundred ninety trillion, one hundred eleven billion, one hundred eleven million, ten thousand, one hundred eleven".