11131223112020 has 48 divisors (see below), whose sum is σ = 25823412921600. Its totient is φ = 3996480558720.

The previous prime is 11131223111977. The next prime is 11131223112073. The reversal of 11131223112020 is 2021132213111.

11131223112020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 11131223111983 and 11131223112001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320213435 + ... + 320248194.

It is an arithmetic number, because the mean of its divisors is an integer number (537987769200).

Almost surely, 2^{11131223112020} is an apocalyptic number.

11131223112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11131223112020 is an abundant number, since it is smaller than the sum of its proper divisors (14692189809580).

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

11131223112020 is a wasteful number, since it uses less digits than its factorization.

11131223112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640461728 (or 640461726 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11131223112020 its reverse (2021132213111), we get a palindrome (13152355325131).

The spelling of 11131223112020 in words is "eleven trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred twelve thousand, twenty".