12401444003 has 4 divisors (see below), whose sum is σ = 13355401248. Its totient is φ = 11447486760.

The previous prime is 12401443979. The next prime is 12401444057. The reversal of 12401444003 is 30044410421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30044410421 = 19 ⋅1581284759.

It is a cyclic number.

It is not a de Polignac number, because 12401444003 - 2¹² = 12401439907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12401444003.

It is not an unprimeable number, because it can be changed into a prime (12401444063) 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, 476978603 + ... + 476978628.

It is an arithmetic number, because the mean of its divisors is an integer number (3338850312).

Almost surely, 2^12401444003 is an apocalyptic number.

12401444003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12401444003 is a deficient number, since it is larger than the sum of its proper divisors (953957245).

12401444003 is an equidigital number, since it uses as much as digits as its factorization.

12401444003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953957244.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12401444003 its reverse (30044410421), we get a palindrome (42445854424).

The spelling of 12401444003 in words is "twelve billion, four hundred one million, four hundred forty-four thousand, three".