1121343212020 has 48 divisors (see below), whose sum is σ = 2360083799808. Its totient is φ = 447535820160.

The previous prime is 1121343211931. The next prime is 1121343212051. The reversal of 1121343212020 is 202123431211.

It is a junction number, because it is equal to n+sod(n) for n = 1121343211982 and 1121343212000.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18095890 + ... + 18157750.

It is an arithmetic number, because the mean of its divisors is an integer number (49168412496).

Almost surely, 2^{1121343212020} is an apocalyptic number.

1121343212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121343212020 is an abundant number, since it is smaller than the sum of its proper divisors (1238740587788).

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

1121343212020 is a wasteful number, since it uses less digits than its factorization.

1121343212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63880 (or 63878 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1121343212020 its reverse (202123431211), we get a palindrome (1323466643231).

The spelling of 1121343212020 in words is "one trillion, one hundred twenty-one billion, three hundred forty-three million, two hundred twelve thousand, twenty".