13421155303 has 4 divisors (see below), whose sum is σ = 13433503360. Its totient is φ = 13408807248.

The previous prime is 13421155301. The next prime is 13421155309. The reversal of 13421155303 is 30355112431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13421155303 - 2¹ = 13421155301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421155301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6172398 + ... + 6174571.

It is an arithmetic number, because the mean of its divisors is an integer number (3358375840).

Almost surely, 2^13421155303 is an apocalyptic number.

13421155303 is a deficient number, since it is larger than the sum of its proper divisors (12348057).

13421155303 is a wasteful number, since it uses less digits than its factorization.

13421155303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348056.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 13421155303 its reverse (30355112431), we get a palindrome (43776267734).

The spelling of 13421155303 in words is "thirteen billion, four hundred twenty-one million, one hundred fifty-five thousand, three hundred three".