11321839 has 2 divisors, whose sum is σ = 11321840. Its totient is φ = 11321838.

The previous prime is 11321837. The next prime is 11321897. The reversal of 11321839 is 93812311.

It is a weak prime.

It is an emirp because it is prime and its reverse (93812311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11321839 - 2¹ = 11321837 is a prime.

Together with 11321837, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660919 + 5660920.

It is an arithmetic number, because the mean of its divisors is an integer number (5660920).

Almost surely, 2^11321839 is an apocalyptic number.

11321839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321839 is an equidigital number, since it uses as much as digits as its factorization.

11321839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 11321839 is about 3364.7940501612. The cubic root of 11321839 is about 224.5461733094.

It can be divided in two parts, 113 and 21839, that added together give a cube (21952 = 28³).

The spelling of 11321839 in words is "eleven million, three hundred twenty-one thousand, eight hundred thirty-nine".