13513112403 has 16 divisors (see below), whose sum is σ = 20653629696. Its totient is φ = 7698445920.

The previous prime is 13513112401. The next prime is 13513112407. The reversal of 13513112403 is 30421131531.

It is not a de Polignac number, because 13513112403 - 2¹ = 13513112401 is a prime.

It is a super-2 number, since 2×13513112403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13513112401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965076 + ... + 978977.

It is an arithmetic number, because the mean of its divisors is an integer number (1290851856).

Almost surely, 2^13513112403 is an apocalyptic number.

13513112403 is a deficient number, since it is larger than the sum of its proper divisors (7140517293).

13513112403 is a wasteful number, since it uses less digits than its factorization.

13513112403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944394.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 13513112403 its reverse (30421131531), we get a palindrome (43934243934).

The spelling of 13513112403 in words is "thirteen billion, five hundred thirteen million, one hundred twelve thousand, four hundred three".