13321152403 has 6 divisors (see below), whose sum is σ = 14424680004. Its totient is φ = 12296448216.

The previous prime is 13321152391. The next prime is 13321152409. The reversal of 13321152403 is 30425112331.

It is a happy number.

It is not a de Polignac number, because 13321152403 - 2⁵ = 13321152371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13321152409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39411525 + ... + 39411862.

It is an arithmetic number, because the mean of its divisors is an integer number (2404113334).

Almost surely, 2^13321152403 is an apocalyptic number.

13321152403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13321152403 is a deficient number, since it is larger than the sum of its proper divisors (1103527601).

13321152403 is an equidigital number, since it uses as much as digits as its factorization.

13321152403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78823413 (or 78823400 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13321152403 its reverse (30425112331), we get a palindrome (43746264734).

The spelling of 13321152403 in words is "thirteen billion, three hundred twenty-one million, one hundred fifty-two thousand, four hundred three".