11423501 has 2 divisors, whose sum is σ = 11423502. Its totient is φ = 11423500.

The previous prime is 11423497. The next prime is 11423537. The reversal of 11423501 is 10532411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9449476 + 1974025 = 3074^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 11423501 - 2² = 11423497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11423501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11423591) 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, 5711750 + 5711751.

It is an arithmetic number, because the mean of its divisors is an integer number (5711751).

Almost surely, 2^11423501 is an apocalyptic number.

It is an amenable number.

11423501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423501 is an equidigital number, since it uses as much as digits as its factorization.

11423501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11423501 is about 3379.8670092180. The cubic root of 11423501 is about 225.2162595645.

Adding to 11423501 its reverse (10532411), we get a palindrome (21955912).

The spelling of 11423501 in words is "eleven million, four hundred twenty-three thousand, five hundred one".