13415420403 has 72 divisors (see below), whose sum is σ = 24909108224. Its totient is φ = 6806812320.

The previous prime is 13415420399. The next prime is 13415420441. The reversal of 13415420403 is 30402451431.

It is a happy number.

It is not a de Polignac number, because 13415420403 - 2² = 13415420399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13415420803) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 307326 + ... + 348252.

Almost surely, 2^13415420403 is an apocalyptic number.

13415420403 is a deficient number, since it is larger than the sum of its proper divisors (11493687821).

13415420403 is a wasteful number, since it uses less digits than its factorization.

13415420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41005 (or 40991 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 13415420403 its reverse (30402451431), we get a palindrome (43817871834).

The spelling of 13415420403 in words is "thirteen billion, four hundred fifteen million, four hundred twenty thousand, four hundred three".