124323312111 has 4 divisors (see below), whose sum is σ = 165764416152. Its totient is φ = 82882208072.

The previous prime is 124323312109. The next prime is 124323312137. The reversal of 124323312111 is 111213323421.

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 124323312111 - 2¹ = 124323312109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124323312611) 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, 20720552016 + ... + 20720552021.

It is an arithmetic number, because the mean of its divisors is an integer number (41441104038).

Almost surely, 2^124323312111 is an apocalyptic number.

124323312111 is a deficient number, since it is larger than the sum of its proper divisors (41441104041).

124323312111 is an equidigital number, since it uses as much as digits as its factorization.

124323312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41441104040.

The product of its digits is 864, while the sum is 24.

Adding to 124323312111 its reverse (111213323421), we get a palindrome (235536635532).

The spelling of 124323312111 in words is "one hundred twenty-four billion, three hundred twenty-three million, three hundred twelve thousand, one hundred eleven".