13122042403 has 4 divisors (see below), whose sum is σ = 13168410328. Its totient is φ = 13075674480.

The previous prime is 13122042379. The next prime is 13122042443. The reversal of 13122042403 is 30424022131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13122042403 is a prime.

It is a super-2 number, since 2×13122042403² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122042443) 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, 23183538 + ... + 23184103.

It is an arithmetic number, because the mean of its divisors is an integer number (3292102582).

Almost surely, 2^13122042403 is an apocalyptic number.

13122042403 is a deficient number, since it is larger than the sum of its proper divisors (46367925).

13122042403 is an equidigital number, since it uses as much as digits as its factorization.

13122042403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46367924.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13122042403 its reverse (30424022131), we get a palindrome (43546064534).

The spelling of 13122042403 in words is "thirteen billion, one hundred twenty-two million, forty-two thousand, four hundred three".