135043111520 has 96 divisors (see below), whose sum is σ = 323347000032. Its totient is φ = 53289787392.

The previous prime is 135043111453. The next prime is 135043111573. The reversal of 135043111520 is 25111340531.

It is a self number, because there is not a number n which added to its sum of digits gives 135043111520.

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, 9727304 + ... + 9741176.

It is an arithmetic number, because the mean of its divisors is an integer number (3368197917).

Almost surely, 2^135043111520 is an apocalyptic number.

135043111520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135043111520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161673500016).

135043111520 is an abundant number, since it is smaller than the sum of its proper divisors (188303888512).

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

135043111520 is a wasteful number, since it uses less digits than its factorization.

135043111520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14704 (or 14696 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 135043111520 in words is "one hundred thirty-five billion, forty-three million, one hundred eleven thousand, five hundred twenty".