117520423020 has 2304 divisors, whose sum is σ = 554770944000. Its totient is φ = 20483850240.

The previous prime is 117520422983. The next prime is 117520423039. The reversal of 117520423020 is 20324025711.

117520423020 is a `hidden beast` number, since 117 + 520 + 4 + 2 + 3 + 0 + 20 = 666.

It is a super-2 number, since 2×117520423020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 4052428366 + ... + 4052428394.

It is an arithmetic number, because the mean of its divisors is an integer number (240786000).

Almost surely, 2^117520423020 is an apocalyptic number.

117520423020 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 117520423020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277385472000).

117520423020 is an abundant number, since it is smaller than the sum of its proper divisors (437250520980).

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

117520423020 is a wasteful number, since it uses less digits than its factorization.

117520423020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 117520423020 its reverse (20324025711), we get a palindrome (137844448731).

The spelling of 117520423020 in words is "one hundred seventeen billion, five hundred twenty million, four hundred twenty-three thousand, twenty".