113540510520 has 192 divisors, whose sum is σ = 396217448640. Its totient is φ = 28094976000.

The previous prime is 113540510387. The next prime is 113540510533. The reversal of 113540510520 is 25015045311.

113540510520 is a `hidden beast` number, since 1 + 13 + 540 + 5 + 105 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 303870 + ... + 565170.

It is an arithmetic number, because the mean of its divisors is an integer number (2063632545).

Almost surely, 2^113540510520 is an apocalyptic number.

113540510520 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 113540510520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198108724320).

113540510520 is an abundant number, since it is smaller than the sum of its proper divisors (282676938120).

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

113540510520 is a wasteful number, since it uses less digits than its factorization.

113540510520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261406 (or 261399 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 113540510520 its reverse (25015045311), we get a palindrome (138555555831).

The spelling of 113540510520 in words is "one hundred thirteen billion, five hundred forty million, five hundred ten thousand, five hundred twenty".