135123524052 has 48 divisors (see below), whose sum is σ = 344361024000. Its totient is φ = 40897684960.

The previous prime is 135123524023. The next prime is 135123524057. The reversal of 135123524052 is 250425321531.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135123524057) 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, 499302 + ... + 720797.

It is an arithmetic number, because the mean of its divisors is an integer number (7174188000).

Almost surely, 2^135123524052 is an apocalyptic number.

135123524052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135123524052 is an abundant number, since it is smaller than the sum of its proper divisors (209237499948).

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

135123524052 is a wasteful number, since it uses less digits than its factorization.

135123524052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220956 (or 1220954 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 135123524052 its reverse (250425321531), we get a palindrome (385548845583).

The spelling of 135123524052 in words is "one hundred thirty-five billion, one hundred twenty-three million, five hundred twenty-four thousand, fifty-two".