11421401 has 2 divisors, whose sum is σ = 11421402. Its totient is φ = 11421400.

The previous prime is 11421379. The next prime is 11421437. The reversal of 11421401 is 10412411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11397376 + 24025 = 3376^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421401 - 2¹⁰ = 11420377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11421461) 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, 5710700 + 5710701.

It is an arithmetic number, because the mean of its divisors is an integer number (5710701).

Almost surely, 2^11421401 is an apocalyptic number.

It is an amenable number.

11421401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421401 is an equidigital number, since it uses as much as digits as its factorization.

11421401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 11421401 is about 3379.5563318282. The cubic root of 11421401 is about 225.2024581000.

Adding to 11421401 its reverse (10412411), we get a palindrome (21833812).

The spelling of 11421401 in words is "eleven million, four hundred twenty-one thousand, four hundred one".