12401231 has 8 divisors (see below), whose sum is σ = 12651264. Its totient is φ = 12153240.

The previous prime is 12401189. The next prime is 12401251. The reversal of 12401231 is 13210421.

12401231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12401231 - 2¹⁴ = 12384847 is a prime.

It is a super-2 number, since 2×12401231² = 307581060630722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17816 + ... + 18498.

It is an arithmetic number, because the mean of its divisors is an integer number (1581408).

Almost surely, 2^12401231 is an apocalyptic number.

12401231 is a deficient number, since it is larger than the sum of its proper divisors (250033).

12401231 is an equidigital number, since it uses as much as digits as its factorization.

12401231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12401231 is about 3521.5381582485. The cubic root of 12401231 is about 231.4665644979.

Adding to 12401231 its reverse (13210421), we get a palindrome (25611652).

The spelling of 12401231 in words is "twelve million, four hundred one thousand, two hundred thirty-one".