12432401103 has 4 divisors (see below), whose sum is σ = 16576534808. Its totient is φ = 8288267400.

The previous prime is 12432401099. The next prime is 12432401129. The reversal of 12432401103 is 30110423421.

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

It is not a de Polignac number, because 12432401103 - 2² = 12432401099 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 12432401103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432401143) 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, 2072066848 + ... + 2072066853.

It is an arithmetic number, because the mean of its divisors is an integer number (4144133702).

Almost surely, 2^12432401103 is an apocalyptic number.

12432401103 is a deficient number, since it is larger than the sum of its proper divisors (4144133705).

12432401103 is an equidigital number, since it uses as much as digits as its factorization.

12432401103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144133704.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12432401103 its reverse (30110423421), we get a palindrome (42542824524).

The spelling of 12432401103 in words is "twelve billion, four hundred thirty-two million, four hundred one thousand, one hundred three".