123311311 has 8 divisors (see below), whose sum is σ = 129904880. Its totient is φ = 116728128.

The previous prime is 123311299. The next prime is 123311323. The reversal of 123311311 is 113113321.

It is an interprime number because it is at equal distance from previous prime (123311299) and next prime (123311323).

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 123311311 - 2¹³ = 123303119 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 (123311341) 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, 39085 + ... + 42121.

It is an arithmetic number, because the mean of its divisors is an integer number (16238110).

Almost surely, 2^123311311 is an apocalyptic number.

123311311 is a deficient number, since it is larger than the sum of its proper divisors (6593569).

123311311 is a wasteful number, since it uses less digits than its factorization.

123311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193.

The product of its digits is 54, while the sum is 16.

The square root of 123311311 is about 11104.5626208329. The cubic root of 123311311 is about 497.7381986033.

Adding to 123311311 its reverse (113113321), we get a palindrome (236424632).

It can be divided in two parts, 1233 and 11311, that added together give a square (12544 = 112²).

The spelling of 123311311 in words is "one hundred twenty-three million, three hundred eleven thousand, three hundred eleven".