1111313322020 has 72 divisors (see below), whose sum is σ = 2566159600704. Its totient is φ = 403963560000.

The previous prime is 1111313322013. The next prime is 1111313322043. The reversal of 1111313322020 is 202233131111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1111313321983 and 1111313322001.

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 23 ways as a sum of consecutive naturals, for example, 6524945 + ... + 6693095.

Almost surely, 2^{1111313322020} is an apocalyptic number.

1111313322020 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 1111313322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283079800352).

1111313322020 is an abundant number, since it is smaller than the sum of its proper divisors (1454846278684).

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

1111313322020 is a wasteful number, since it uses less digits than its factorization.

1111313322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170913 (or 170900 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1111313322020 its reverse (202233131111), we get a palindrome (1313546453131).

The spelling of 1111313322020 in words is "one trillion, one hundred eleven billion, three hundred thirteen million, three hundred twenty-two thousand, twenty".