11321047 has 2 divisors, whose sum is σ = 11321048. Its totient is φ = 11321046.

The previous prime is 11321029. The next prime is 11321053. The reversal of 11321047 is 74012311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11321047 - 2⁷ = 11320919 is a prime.

It is a super-2 number, since 2×11321047² = 256332210352418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660523 + 5660524.

It is an arithmetic number, because the mean of its divisors is an integer number (5660524).

Almost surely, 2^11321047 is an apocalyptic number.

11321047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321047 is an equidigital number, since it uses as much as digits as its factorization.

11321047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11321047 is about 3364.6763588791. The cubic root of 11321047 is about 224.5409372721.

Adding to 11321047 its reverse (74012311), we get a palindrome (85333358).

The spelling of 11321047 in words is "eleven million, three hundred twenty-one thousand, forty-seven".