12401403 has 8 divisors (see below), whose sum is σ = 18897408. Its totient is φ = 7086504.

The previous prime is 12401399. The next prime is 12401429. The reversal of 12401403 is 30410421.

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

It is not a de Polignac number, because 12401403 - 2² = 12401399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12401903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295251 + ... + 295292.

It is an arithmetic number, because the mean of its divisors is an integer number (2362176).

Almost surely, 2^12401403 is an apocalyptic number.

12401403 is a deficient number, since it is larger than the sum of its proper divisors (6496005).

12401403 is an equidigital number, since it uses as much as digits as its factorization.

12401403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590553.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12401403 is about 3521.5625793105. The cubic root of 12401403 is about 231.4676346084.

Adding to 12401403 its reverse (30410421), we get a palindrome (42811824).

The spelling of 12401403 in words is "twelve million, four hundred one thousand, four hundred three".