11423505 has 8 divisors (see below), whose sum is σ = 18277632. Its totient is φ = 6092528.

The previous prime is 11423501. The next prime is 11423537. The reversal of 11423505 is 50532411.

11423505 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11423505 - 2² = 11423501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11423501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380769 + ... + 380798.

It is an arithmetic number, because the mean of its divisors is an integer number (2284704).

Almost surely, 2^11423505 is an apocalyptic number.

11423505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11423505 is a deficient number, since it is larger than the sum of its proper divisors (6854127).

11423505 is an equidigital number, since it uses as much as digits as its factorization.

11423505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761575.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 11423505 is about 3379.8676009572. The cubic root of 11423505 is about 225.2162858513.

Adding to 11423505 its reverse (50532411), we get a palindrome (61955916).

The spelling of 11423505 in words is "eleven million, four hundred twenty-three thousand, five hundred five".