113311021120 has 84 divisors (see below), whose sum is σ = 296581164012. Its totient is φ = 41203993600.

The previous prime is 113311021097. The next prime is 113311021123. The reversal of 113311021120 is 21120113311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60193678336 + 53117342784 = 245344^2 + 230472^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 113311021094 and 113311021103.

It is not an unprimeable number, because it can be changed into a prime (113311021123) 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, 1424491 + ... + 1501930.

It is an arithmetic number, because the mean of its divisors is an integer number (3530728143).

Almost surely, 2^113311021120 is an apocalyptic number.

113311021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113311021120 is an abundant number, since it is smaller than the sum of its proper divisors (183270142892).

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

113311021120 is a wasteful number, since it uses less digits than its factorization.

113311021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926460 (or 2926439 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113311021120 its reverse (21120113311), we get a palindrome (134431134431).

The spelling of 113311021120 in words is "one hundred thirteen billion, three hundred eleven million, twenty-one thousand, one hundred twenty".