123040111 has 8 divisors (see below), whose sum is σ = 125978544. Its totient is φ = 120131520.

The previous prime is 123040109. The next prime is 123040117. The reversal of 123040111 is 111040321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123040111 - 2¹ = 123040109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123040091 and 123040100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123040117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996 + ... + 15718.

It is an arithmetic number, because the mean of its divisors is an integer number (15747318).

Almost surely, 2^123040111 is an apocalyptic number.

123040111 is a deficient number, since it is larger than the sum of its proper divisors (2938433).

123040111 is a wasteful number, since it uses less digits than its factorization.

123040111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 123040111 is about 11092.3447025415. The cubic root of 123040111 is about 497.3730369685.

Adding to 123040111 its reverse (111040321), we get a palindrome (234080432).

The spelling of 123040111 in words is "one hundred twenty-three million, forty thousand, one hundred eleven".