113420224140520 has 128 divisors (see below), whose sum is σ = 293070003033600. Its totient is φ = 39069991353600.

The previous prime is 113420224140491. The next prime is 113420224140581. The reversal of 113420224140520 is 25041422024311.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109594527 + ... + 110624593.

It is an arithmetic number, because the mean of its divisors is an integer number (2289609398700).

Almost surely, 2^{113420224140520} is an apocalyptic number.

113420224140520 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 113420224140520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146535001516800).

113420224140520 is an abundant number, since it is smaller than the sum of its proper divisors (179649778893080).

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

113420224140520 is a wasteful number, since it uses less digits than its factorization.

113420224140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043279 (or 1043275 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 113420224140520 its reverse (25041422024311), we get a palindrome (138461646164831).

The spelling of 113420224140520 in words is "one hundred thirteen trillion, four hundred twenty billion, two hundred twenty-four million, one hundred forty thousand, five hundred twenty".