135515320203 has 8 divisors (see below), whose sum is σ = 180896467968. Its totient is φ = 90238859624.

The previous prime is 135515320169. The next prime is 135515320223. The reversal of 135515320203 is 302023515531.

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 135515320203 - 2⁹ = 135515319691 is a prime.

It is a super-2 number, since 2×135515320203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135515320223) 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, 26168775 + ... + 26173952.

It is an arithmetic number, because the mean of its divisors is an integer number (22612058496).

Almost surely, 2^135515320203 is an apocalyptic number.

135515320203 is a deficient number, since it is larger than the sum of its proper divisors (45381147765).

135515320203 is an equidigital number, since it uses as much as digits as its factorization.

135515320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52343593.

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 135515320203 its reverse (302023515531), we get a palindrome (437538835734).

The spelling of 135515320203 in words is "one hundred thirty-five billion, five hundred fifteen million, three hundred twenty thousand, two hundred three".