12303391 has 4 divisors (see below), whose sum is σ = 12377232. Its totient is φ = 12229552.

The previous prime is 12303353. The next prime is 12303397. The reversal of 12303391 is 19330321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12303391 - 2¹⁵ = 12270623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303397) 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, 36670 + ... + 37003.

It is an arithmetic number, because the mean of its divisors is an integer number (3094308).

Almost surely, 2^12303391 is an apocalyptic number.

12303391 is a deficient number, since it is larger than the sum of its proper divisors (73841).

12303391 is an equidigital number, since it uses as much as digits as its factorization.

12303391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73840.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 12303391 is about 3507.6189929923. The cubic root of 12303391 is about 230.8562350768.

The spelling of 12303391 in words is "twelve million, three hundred three thousand, three hundred ninety-one".