11512399 has 2 divisors, whose sum is σ = 11512400. Its totient is φ = 11512398.

The previous prime is 11512387. The next prime is 11512427. The reversal of 11512399 is 99321511.

It is a happy number.

11512399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (99321511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11512399 - 2¹⁷ = 11381327 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11512399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11512199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756199 + 5756200.

It is an arithmetic number, because the mean of its divisors is an integer number (5756200).

Almost surely, 2^11512399 is an apocalyptic number.

11512399 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512399 is an equidigital number, since it uses as much as digits as its factorization.

11512399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 31.

The square root of 11512399 is about 3392.9926318812. The cubic root of 11512399 is about 225.7989636773.

It can be divided in two parts, 11512 and 399, that added together give a palindrome (11911).

The spelling of 11512399 in words is "eleven million, five hundred twelve thousand, three hundred ninety-nine".