12383523 has 14 divisors (see below), whose sum is σ = 18567884. Its totient is φ = 8255196.

The previous prime is 12383521. The next prime is 12383563. The reversal of 12383523 is 32538321.

It is not a de Polignac number, because 12383523 - 2¹ = 12383521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12383521) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 7765 + ... + 9222.

Almost surely, 2^12383523 is an apocalyptic number.

12383523 is a deficient number, since it is larger than the sum of its proper divisors (6184361).

12383523 is an frugal number, since it uses more digits than its factorization.

12383523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17005 (or 16990 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 12383523 is about 3519.0230178275. The cubic root of 12383523 is about 231.3563398919.

It can be divided in two parts, 1238 and 3523, that added together give a square (4761 = 69²).

The spelling of 12383523 in words is "twelve million, three hundred eighty-three thousand, five hundred twenty-three".