11401427 has 2 divisors, whose sum is σ = 11401428. Its totient is φ = 11401426.

The previous prime is 11401417. The next prime is 11401447. The reversal of 11401427 is 72410411.

It is an a-pointer prime, because the next prime (11401447) can be obtained adding 11401427 to its sum of digits (20).

It is a weak prime.

It is an emirp because it is prime and its reverse (72410411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11401427 - 2²⁰ = 10352851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11401399 and 11401408.

It is not a weakly prime, because it can be changed into another prime (11401417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700713 + 5700714.

It is an arithmetic number, because the mean of its divisors is an integer number (5700714).

Almost surely, 2^11401427 is an apocalyptic number.

11401427 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401427 is an equidigital number, since it uses as much as digits as its factorization.

11401427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 11401427 is about 3376.5999170763. The cubic root of 11401427 is about 225.0711018087.

Adding to 11401427 its reverse (72410411), we get a palindrome (83811838).

The spelling of 11401427 in words is "eleven million, four hundred one thousand, four hundred twenty-seven".