3111391667 has 4 divisors (see below), whose sum is σ = 3125344320. Its totient is φ = 3097439016.

The previous prime is 3111391651. The next prime is 3111391741. The reversal of 3111391667 is 7661931113.

3111391667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3111391667 - 2⁴ = 3111391651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111391667.

It is not an unprimeable number, because it can be changed into a prime (3111391637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6975992 + ... + 6976437.

It is an arithmetic number, because the mean of its divisors is an integer number (781336080).

Almost surely, 2^3111391667 is an apocalyptic number.

3111391667 is a deficient number, since it is larger than the sum of its proper divisors (13952653).

3111391667 is a wasteful number, since it uses less digits than its factorization.

3111391667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13952652.

The product of its digits is 20412, while the sum is 38.

The square root of 3111391667 is about 55779.8500087621. The cubic root of 3111391667 is about 1459.8835941157.

The spelling of 3111391667 in words is "three billion, one hundred eleven million, three hundred ninety-one thousand, six hundred sixty-seven".