11523242401 has 4 divisors (see below), whose sum is σ = 12570809904. Its totient is φ = 10475674900.

The previous prime is 11523242389. The next prime is 11523242441. The reversal of 11523242401 is 10424232511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11523242401 - 2⁹ = 11523241889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523242441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523783735 + ... + 523783756.

It is an arithmetic number, because the mean of its divisors is an integer number (3142702476).

Almost surely, 2^11523242401 is an apocalyptic number.

11523242401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11523242401 is a deficient number, since it is larger than the sum of its proper divisors (1047567503).

11523242401 is a wasteful number, since it uses less digits than its factorization.

11523242401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047567502.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 11523242401 its reverse (10424232511), we get a palindrome (21947474912).

The spelling of 11523242401 in words is "eleven billion, five hundred twenty-three million, two hundred forty-two thousand, four hundred one".