12111339 has 8 divisors (see below), whose sum is σ = 16230400. Its totient is φ = 8033256.

The previous prime is 12111331. The next prime is 12111349. The reversal of 12111339 is 93311121.

Added to its reverse (93311121) it gives a triangular number (105422460 = T₁₄₅₂₀).

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

It is not a de Polignac number, because 12111339 - 2³ = 12111331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111331) 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, 9547 + ... + 10740.

It is an arithmetic number, because the mean of its divisors is an integer number (2028800).

Almost surely, 2^12111339 is an apocalyptic number.

12111339 is a deficient number, since it is larger than the sum of its proper divisors (4119061).

12111339 is a wasteful number, since it uses less digits than its factorization.

12111339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20489.

The product of its digits is 162, while the sum is 21.

The square root of 12111339 is about 3480.1349111780. The cubic root of 12111339 is about 229.6487328620.

Adding to 12111339 its reverse (93311121), we get a triangular number (105422460 = T₁₄₅₂₀).

The spelling of 12111339 in words is "twelve million, one hundred eleven thousand, three hundred thirty-nine".