11642321 has 2 divisors, whose sum is σ = 11642322. Its totient is φ = 11642320.

The previous prime is 11642303. The next prime is 11642333. The reversal of 11642321 is 12324611.

11642321 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8473921 + 3168400 = 2911^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 11642321 - 2²² = 7448017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11642293 and 11642302.

It is not a weakly prime, because it can be changed into another prime (11642621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5821160 + 5821161.

It is an arithmetic number, because the mean of its divisors is an integer number (5821161).

Almost surely, 2^11642321 is an apocalyptic number.

It is an amenable number.

11642321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11642321 is an equidigital number, since it uses as much as digits as its factorization.

11642321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 11642321 is about 3412.0845534658. The cubic root of 11642321 is about 226.6451986108.

Adding to 11642321 its reverse (12324611), we get a palindrome (23966932).

The spelling of 11642321 in words is "eleven million, six hundred forty-two thousand, three hundred twenty-one".