13520291903 has 8 divisors (see below), whose sum is σ = 13603405680. Its totient is φ = 13437262720.

The previous prime is 13520291887. The next prime is 13520291921. The reversal of 13520291903 is 30919202531.

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 13520291903 - 2⁴ = 13520291887 is a prime.

It is a super-2 number, since 2×13520291903² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520291923) 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, 315863 + ... + 356103.

It is an arithmetic number, because the mean of its divisors is an integer number (1700425710).

Almost surely, 2^13520291903 is an apocalyptic number.

13520291903 is a deficient number, since it is larger than the sum of its proper divisors (83113777).

13520291903 is a wasteful number, since it uses less digits than its factorization.

13520291903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42297.

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 13520291903 in words is "thirteen billion, five hundred twenty million, two hundred ninety-one thousand, nine hundred three".