111331421304020 has 12 divisors (see below), whose sum is σ = 233795984738484. Its totient is φ = 44532568521600.

The previous prime is 111331421304011. The next prime is 111331421304023. The reversal of 111331421304020 is 20403124133111.

It can be written as a sum of positive squares in 2 ways, for example, as 20338404275344 + 90993017028676 = 4509812^2 + 9539026^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111331421304023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783285532581 + ... + 2783285532620.

It is an arithmetic number, because the mean of its divisors is an integer number (19482998728207).

Almost surely, 2^{111331421304020} is an apocalyptic number.

111331421304020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111331421304020 is an abundant number, since it is smaller than the sum of its proper divisors (122464563434464).

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

111331421304020 is a wasteful number, since it uses less digits than its factorization.

111331421304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566571065210 (or 5566571065208 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 111331421304020 its reverse (20403124133111), we get a palindrome (131734545437131).

The spelling of 111331421304020 in words is "one hundred eleven trillion, three hundred thirty-one billion, four hundred twenty-one million, three hundred four thousand, twenty".