111320334720 has 1280 divisors, whose sum is σ = 476018104320. Its totient is φ = 24266096640.

The previous prime is 111320334667. The next prime is 111320334721. The reversal of 111320334720 is 27433023111.

It is a happy number.

111320334720 is a `hidden beast` number, since 1 + 1 + 1 + 320 + 334 + 7 + 2 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320334721) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1040376907 + ... + 1040377013.

It is an arithmetic number, because the mean of its divisors is an integer number (371889144).

Almost surely, 2^111320334720 is an apocalyptic number.

111320334720 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 111320334720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238009052160).

111320334720 is an abundant number, since it is smaller than the sum of its proper divisors (364697769600).

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

111320334720 is a wasteful number, since it uses less digits than its factorization.

111320334720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

Adding to 111320334720 its reverse (27433023111), we get a palindrome (138753357831).

It can be divided in two parts, 111320 and 334720, that added together give a triangular number (446040 = T₉₄₄).

The spelling of 111320334720 in words is "one hundred eleven billion, three hundred twenty million, three hundred thirty-four thousand, seven hundred twenty".