18801323 has 4 divisors (see below), whose sum is σ = 18832608. Its totient is φ = 18770040.

The previous prime is 18801319. The next prime is 18801331. The reversal of 18801323 is 32310881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32310881 = 113 ⋅285937.

It is a cyclic number.

It is not a de Polignac number, because 18801323 - 2² = 18801319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18801292 and 18801301.

It is not an unprimeable number, because it can be changed into a prime (18801313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14723 + ... + 15948.

It is an arithmetic number, because the mean of its divisors is an integer number (4708152).

Almost surely, 2^18801323 is an apocalyptic number.

18801323 is a deficient number, since it is larger than the sum of its proper divisors (31285).

18801323 is an equidigital number, since it uses as much as digits as its factorization.

18801323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31284.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 18801323 is about 4336.0492386503. The cubic root of 18801323 is about 265.9068162493.

The spelling of 18801323 in words is "eighteen million, eight hundred one thousand, three hundred twenty-three".