135512202021204 has 48 divisors (see below), whose sum is σ = 316287168906240. Its totient is φ = 45157587990240.

The previous prime is 135512202021187. The next prime is 135512202021221. The reversal of 135512202021204 is 402120202215531.

It is an interprime number because it is at equal distance from previous prime (135512202021187) and next prime (135512202021221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028419477 + ... + 1028551235.

It is an arithmetic number, because the mean of its divisors is an integer number (6589316018880).

Almost surely, 2^{135512202021204} is an apocalyptic number.

It is an amenable number.

135512202021204 is an abundant number, since it is smaller than the sum of its proper divisors (180774966885036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135512202021204 is a wasteful number, since it uses less digits than its factorization.

135512202021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156060 (or 156058 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 135512202021204 its reverse (402120202215531), we get a palindrome (537632404236735).

The spelling of 135512202021204 in words is "one hundred thirty-five trillion, five hundred twelve billion, two hundred two million, twenty-one thousand, two hundred four".