13525120343 has 4 divisors (see below), whose sum is σ = 15457280400. Its totient is φ = 11592960288.

The previous prime is 13525120337. The next prime is 13525120351. The reversal of 13525120343 is 34302152531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34302152531 = 19 ⋅1805376449.

It is not a de Polignac number, because 13525120343 - 2¹⁴ = 13525103959 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 (13525120313) 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, 966080018 + ... + 966080031.

It is an arithmetic number, because the mean of its divisors is an integer number (3864320100).

Almost surely, 2^13525120343 is an apocalyptic number.

13525120343 is a deficient number, since it is larger than the sum of its proper divisors (1932160057).

13525120343 is an equidigital number, since it uses as much as digits as its factorization.

13525120343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932160056.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 13525120343 its reverse (34302152531), we get a palindrome (47827272874).

The spelling of 13525120343 in words is "thirteen billion, five hundred twenty-five million, one hundred twenty thousand, three hundred forty-three".