123144311 has 8 divisors (see below), whose sum is σ = 130570704. Its totient is φ = 115738240.

The previous prime is 123144271. The next prime is 123144319. The reversal of 123144311 is 113441321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123144311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123144319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8456 + ... + 17826.

It is an arithmetic number, because the mean of its divisors is an integer number (16321338).

Almost surely, 2^123144311 is an apocalyptic number.

123144311 is a deficient number, since it is larger than the sum of its proper divisors (7426393).

123144311 is an equidigital number, since it uses as much as digits as its factorization.

123144311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161.

The product of its digits is 288, while the sum is 20.

The square root of 123144311 is about 11097.0406415404. The cubic root of 123144311 is about 497.5134021625.

Adding to 123144311 its reverse (113441321), we get a palindrome (236585632).

The spelling of 123144311 in words is "one hundred twenty-three million, one hundred forty-four thousand, three hundred eleven".