1121322032020 has 12 divisors (see below), whose sum is σ = 2354776267284. Its totient is φ = 448528812800.

The previous prime is 1121322032003. The next prime is 1121322032057. The reversal of 1121322032020 is 202302231211.

It can be written as a sum of positive squares in 2 ways, for example, as 660962496016 + 460359536004 = 812996^2 + 678498^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28033050781 + ... + 28033050820.

It is an arithmetic number, because the mean of its divisors is an integer number (196231355607).

Almost surely, 2^{1121322032020} is an apocalyptic number.

1121322032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121322032020 is an abundant number, since it is smaller than the sum of its proper divisors (1233454235264).

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

1121322032020 is a wasteful number, since it uses less digits than its factorization.

1121322032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56066101610 (or 56066101608 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1121322032020 its reverse (202302231211), we get a palindrome (1323624263231).

The spelling of 1121322032020 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-two million, thirty-two thousand, twenty".