13524352121 has 4 divisors (see below), whose sum is σ = 15456402432. Its totient is φ = 11592301812.

The previous prime is 13524352111. The next prime is 13524352129. The reversal of 13524352121 is 12125342531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-13524352121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13524352129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966025145 + ... + 966025158.

It is an arithmetic number, because the mean of its divisors is an integer number (3864100608).

Almost surely, 2^13524352121 is an apocalyptic number.

It is an amenable number.

13524352121 is a deficient number, since it is larger than the sum of its proper divisors (1932050311).

13524352121 is an equidigital number, since it uses as much as digits as its factorization.

13524352121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932050310.

The product of its digits is 7200, while the sum is 29.

Adding to 13524352121 its reverse (12125342531), we get a palindrome (25649694652).

The spelling of 13524352121 in words is "thirteen billion, five hundred twenty-four million, three hundred fifty-two thousand, one hundred twenty-one".