11523401 has 4 divisors (see below), whose sum is σ = 11625492. Its totient is φ = 11421312.

The previous prime is 11523389. The next prime is 11523403. The reversal of 11523401 is 10432511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 640000 + 10883401 = 800^2 + 3299^2 .

It is a cyclic number.

It is not a de Polignac number, because 11523401 - 2²² = 7329097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11523401.

It is not an unprimeable number, because it can be changed into a prime (11523403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50876 + ... + 51101.

It is an arithmetic number, because the mean of its divisors is an integer number (2906373).

Almost surely, 2^11523401 is an apocalyptic number.

It is an amenable number.

11523401 is a deficient number, since it is larger than the sum of its proper divisors (102091).

11523401 is a wasteful number, since it uses less digits than its factorization.

11523401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102090.

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

The square root of 11523401 is about 3394.6135273400. The cubic root of 11523401 is about 225.8708701858.

Adding to 11523401 its reverse (10432511), we get a palindrome (21955912).

The spelling of 11523401 in words is "eleven million, five hundred twenty-three thousand, four hundred one".