11621323 has 4 divisors (see below), whose sum is σ = 13281520. Its totient is φ = 9961128.

The previous prime is 11621321. The next prime is 11621329. The reversal of 11621323 is 32312611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32312611 = 769 ⋅42019.

It is a cyclic number.

It is not a de Polignac number, because 11621323 - 2¹ = 11621321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11621323.

It is not an unprimeable number, because it can be changed into a prime (11621321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830088 + ... + 830101.

It is an arithmetic number, because the mean of its divisors is an integer number (3320380).

Almost surely, 2^11621323 is an apocalyptic number.

11621323 is a deficient number, since it is larger than the sum of its proper divisors (1660197).

11621323 is an equidigital number, since it uses as much as digits as its factorization.

11621323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660196.

The product of its digits is 216, while the sum is 19.

The square root of 11621323 is about 3409.0061601587. The cubic root of 11621323 is about 226.5088581019.

Adding to 11621323 its reverse (32312611), we get a palindrome (43933934).

It can be divided in two parts, 1162 and 1323, that added together give a triangular number (2485 = T₇₀).

The spelling of 11621323 in words is "eleven million, six hundred twenty-one thousand, three hundred twenty-three".