1101023220020 has 12 divisors (see below), whose sum is σ = 2312148762084. Its totient is φ = 440409288000.

The previous prime is 1101023220001. The next prime is 1101023220023. The reversal of 1101023220020 is 200223201011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 680304937636 + 420718282384 = 824806^2 + 648628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1101023219977 and 1101023220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101023220023) by changing a digit.

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, 27525580481 + ... + 27525580520.

It is an arithmetic number, because the mean of its divisors is an integer number (192679063507).

Almost surely, 2^{1101023220020} is an apocalyptic number.

1101023220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101023220020 is an abundant number, since it is smaller than the sum of its proper divisors (1211125542064).

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

1101023220020 is a wasteful number, since it uses less digits than its factorization.

1101023220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55051161010 (or 55051161008 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1101023220020 its reverse (200223201011), we get a palindrome (1301246421031).

The spelling of 1101023220020 in words is "one trillion, one hundred one billion, twenty-three million, two hundred twenty thousand, twenty".