11231399 has 2 divisors, whose sum is σ = 11231400. Its totient is φ = 11231398.

The previous prime is 11231377. The next prime is 11231431. The reversal of 11231399 is 99313211.

11231399 is digitally balanced in base 2 and base 3, because in such bases 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 (99313211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11231399 is a prime.

It is a super-2 number, since 2×11231399² = 252288646994402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615699 + 5615700.

It is an arithmetic number, because the mean of its divisors is an integer number (5615700).

Almost surely, 2^11231399 is an apocalyptic number.

11231399 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231399 is an equidigital number, since it uses as much as digits as its factorization.

11231399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 29.

The square root of 11231399 is about 3351.3279457552. The cubic root of 11231399 is about 223.9466749660.

The spelling of 11231399 in words is "eleven million, two hundred thirty-one thousand, three hundred ninety-nine".