111213130320 has 60 divisors (see below), whose sum is σ = 373490765076. Its totient is φ = 29656834560.

The previous prime is 111213130319. The next prime is 111213130321. The reversal of 111213130320 is 23031312111.

111213130320 is a `hidden beast` number, since 1 + 1 + 1 + 213 + 130 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (111213130319) and next prime (111213130321).

It can be written as a sum of positive squares in 2 ways, for example, as 62264222784 + 48948907536 = 249528^2 + 221244^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111213130293 and 111213130302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213130321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77230621 + ... + 77232060.

Almost surely, 2^111213130320 is an apocalyptic number.

111213130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213130320 is an abundant number, since it is smaller than the sum of its proper divisors (262277634756).

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

111213130320 is a wasteful number, since it uses less digits than its factorization.

111213130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154462700 (or 154462691 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111213130320 its reverse (23031312111), we get a palindrome (134244442431).

The spelling of 111213130320 in words is "one hundred eleven billion, two hundred thirteen million, one hundred thirty thousand, three hundred twenty".