11512423 has 16 divisors (see below), whose sum is σ = 13189120. Its totient is φ = 9961056.

The previous prime is 11512399. The next prime is 11512427. The reversal of 11512423 is 32421511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11512423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 11512423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31186 + ... + 31552.

It is an arithmetic number, because the mean of its divisors is an integer number (824320).

Almost surely, 2^11512423 is an apocalyptic number.

11512423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11512423 is a deficient number, since it is larger than the sum of its proper divisors (1676697).

11512423 is a wasteful number, since it uses less digits than its factorization.

11512423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its digits is 240, while the sum is 19.

The square root of 11512423 is about 3392.9961685802. The cubic root of 11512423 is about 225.7991205856.

Adding to 11512423 its reverse (32421511), we get a palindrome (43933934).

It can be divided in two parts, 11512 and 423, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 11512423 in words is "eleven million, five hundred twelve thousand, four hundred twenty-three".