7111412123 has 4 divisors (see below), whose sum is σ = 7191315720. Its totient is φ = 7031508528.

The previous prime is 7111412071. The next prime is 7111412141. The reversal of 7111412123 is 3212141117.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7111412123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7111412023) 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, 39951665 + ... + 39951842.

It is an arithmetic number, because the mean of its divisors is an integer number (1797828930).

Almost surely, 2^7111412123 is an apocalyptic number.

7111412123 is a deficient number, since it is larger than the sum of its proper divisors (79903597).

7111412123 is an equidigital number, since it uses as much as digits as its factorization.

7111412123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79903596.

The product of its digits is 336, while the sum is 23.

The square root of 7111412123 is about 84329.1890332167. The cubic root of 7111412123 is about 1923.0265600854.

The spelling of 7111412123 in words is "seven billion, one hundred eleven million, four hundred twelve thousand, one hundred twenty-three".