12401243 has 12 divisors (see below), whose sum is σ = 13402440. Its totient is φ = 11442816.

The previous prime is 12401189. The next prime is 12401251. The reversal of 12401243 is 34210421.

It is not a de Polignac number, because 12401243 - 2⁸ = 12400987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34955 + ... + 35307.

It is an arithmetic number, because the mean of its divisors is an integer number (1116870).

Almost surely, 2^12401243 is an apocalyptic number.

12401243 is a deficient number, since it is larger than the sum of its proper divisors (1001197).

12401243 is an equidigital number, since it uses as much as digits as its factorization.

12401243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12401243 is about 3521.5398620490. The cubic root of 12401243 is about 231.4666391571.

Adding to 12401243 its reverse (34210421), we get a palindrome (46611664).

The spelling of 12401243 in words is "twelve million, four hundred one thousand, two hundred forty-three".