135206321336052 has 48 divisors (see below), whose sum is σ = 316864609172160. Its totient is φ = 44871181708032.

The previous prime is 135206321336033. The next prime is 135206321336059. The reversal of 135206321336052 is 250633123602531.

It is a junction number, because it is equal to n+sod(n) for n = 135206321335995 and 135206321336013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135206321336059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168731448 + ... + 169530864.

It is an arithmetic number, because the mean of its divisors is an integer number (6601346024420).

Almost surely, 2^{135206321336052} is an apocalyptic number.

135206321336052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135206321336052 is an abundant number, since it is smaller than the sum of its proper divisors (181658287836108).

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

135206321336052 is a wasteful number, since it uses less digits than its factorization.

135206321336052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861200 (or 861198 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 42.

Adding to 135206321336052 its reverse (250633123602531), we get a palindrome (385839444938583).

The spelling of 135206321336052 in words is "one hundred thirty-five trillion, two hundred six billion, three hundred twenty-one million, three hundred thirty-six thousand, fifty-two".