13000312403 has 16 divisors (see below), whose sum is σ = 14832923616. Its totient is φ = 11287503360.

The previous prime is 13000312387. The next prime is 13000312459. The reversal of 13000312403 is 30421300031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13000312403 - 2⁴ = 13000312387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13000312483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363713 + ... + 397853.

It is an arithmetic number, because the mean of its divisors is an integer number (927057726).

Almost surely, 2^13000312403 is an apocalyptic number.

13000312403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13000312403 is a deficient number, since it is larger than the sum of its proper divisors (1832611213).

13000312403 is a wasteful number, since it uses less digits than its factorization.

13000312403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35894.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13000312403 its reverse (30421300031), we get a palindrome (43421612434).

The spelling of 13000312403 in words is "thirteen billion, three hundred twelve thousand, four hundred three".