11352421 has 2 divisors, whose sum is σ = 11352422. Its totient is φ = 11352420.

The previous prime is 11352401. The next prime is 11352431. The reversal of 11352421 is 12425311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7784100 + 3568321 = 2790^2 + 1889^2 .

It is a cyclic number.

It is not a de Polignac number, because 11352421 - 2⁵ = 11352389 is a prime.

It is a super-2 number, since 2×11352421² = 257754925122482, 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 (11352401) 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, 5676210 + 5676211.

It is an arithmetic number, because the mean of its divisors is an integer number (5676211).

Almost surely, 2^11352421 is an apocalyptic number.

It is an amenable number.

11352421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11352421 is an equidigital number, since it uses as much as digits as its factorization.

11352421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 11352421 is about 3369.3353944064. The cubic root of 11352421 is about 224.7481692730.

Adding to 11352421 its reverse (12425311), we get a palindrome (23777732).

The spelling of 11352421 in words is "eleven million, three hundred fifty-two thousand, four hundred twenty-one".