13521142203 has 8 divisors (see below), whose sum is σ = 18076524048. Its totient is φ = 8989927584.

The previous prime is 13521142169. The next prime is 13521142211. The reversal of 13521142203 is 30224112531.

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

It is not a de Polignac number, because 13521142203 - 2⁶ = 13521142139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13521142003) 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, 6040500 + ... + 6042737.

It is an arithmetic number, because the mean of its divisors is an integer number (2259565506).

Almost surely, 2^13521142203 is an apocalyptic number.

13521142203 is a deficient number, since it is larger than the sum of its proper divisors (4555381845).

13521142203 is a wasteful number, since it uses less digits than its factorization.

13521142203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12083613.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 13521142203 its reverse (30224112531), we get a palindrome (43745254734).

The spelling of 13521142203 in words is "thirteen billion, five hundred twenty-one million, one hundred forty-two thousand, two hundred three".