13420251503 has 8 divisors (see below), whose sum is σ = 14442624720. Its totient is φ = 12423761280.

The previous prime is 13420251461. The next prime is 13420251547. The reversal of 13420251503 is 30515202431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13420251503 - 2¹⁰ = 13420250479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420251553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6469673 + ... + 6471746.

It is an arithmetic number, because the mean of its divisors is an integer number (1805328090).

Almost surely, 2^13420251503 is an apocalyptic number.

13420251503 is a deficient number, since it is larger than the sum of its proper divisors (1022373217).

13420251503 is a wasteful number, since it uses less digits than its factorization.

13420251503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12941497.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 13420251503 its reverse (30515202431), we get a palindrome (43935453934).

The spelling of 13420251503 in words is "thirteen billion, four hundred twenty million, two hundred fifty-one thousand, five hundred three".