12123311 has 8 divisors (see below), whose sum is σ = 12794880. Its totient is φ = 11455128.

The previous prime is 12123299. The next prime is 12123317. The reversal of 12123311 is 11332121.

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 12123311 - 2¹⁸ = 11861167 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 (12123317) 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, 10610 + ... + 11696.

It is an arithmetic number, because the mean of its divisors is an integer number (1599360).

Almost surely, 2^12123311 is an apocalyptic number.

12123311 is a deficient number, since it is larger than the sum of its proper divisors (671569).

12123311 is a wasteful number, since it uses less digits than its factorization.

12123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its digits is 36, while the sum is 14.

The square root of 12123311 is about 3481.8545345835. The cubic root of 12123311 is about 229.7243768300.

Adding to 12123311 its reverse (11332121), we get a palindrome (23455432).

It can be divided in two parts, 121 and 23311, that added together give a palindrome (23432).

The spelling of 12123311 in words is "twelve million, one hundred twenty-three thousand, three hundred eleven".