11423429 has 2 divisors, whose sum is σ = 11423430. Its totient is φ = 11423428.

The previous prime is 11423411. The next prime is 11423431. The reversal of 11423429 is 92432411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8567329 + 2856100 = 2927^2 + 1690^2 .

It is an emirp because it is prime and its reverse (92432411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11423429 - 2⁸ = 11423173 is a prime.

Together with 11423431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11423398 and 11423407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11423449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711714 + 5711715.

It is an arithmetic number, because the mean of its divisors is an integer number (5711715).

Almost surely, 2^11423429 is an apocalyptic number.

It is an amenable number.

11423429 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423429 is an equidigital number, since it uses as much as digits as its factorization.

11423429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 11423429 is about 3379.8563578945. The cubic root of 11423429 is about 225.2157863994.

The spelling of 11423429 in words is "eleven million, four hundred twenty-three thousand, four hundred twenty-nine".