13521401102503 has 12 divisors (see below), whose sum is σ = 15967594828560. Its totient is φ = 11215908743040.

The previous prime is 13521401102459. The next prime is 13521401102509. The reversal of 13521401102503 is 30520110412531.

It is a de Polignac number, because none of the positive numbers 2^k-13521401102503 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 (13521401102509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1005003018 + ... + 1005016471.

It is an arithmetic number, because the mean of its divisors is an integer number (1330632902380).

Almost surely, 2^{13521401102503} is an apocalyptic number.

13521401102503 is a deficient number, since it is larger than the sum of its proper divisors (2446193726057).

13521401102503 is an equidigital number, since it uses as much as digits as its factorization.

13521401102503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010019558 (or 2010019527 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 13521401102503 in words is "thirteen trillion, five hundred twenty-one billion, four hundred one million, one hundred two thousand, five hundred three".