1131100212020 has 12 divisors (see below), whose sum is σ = 2375310445284. Its totient is φ = 452440084800.

The previous prime is 1131100211977. The next prime is 1131100212079. The reversal of 1131100212020 is 202120011311.

It can be written as a sum of positive squares in 2 ways, for example, as 312136750864 + 818963461156 = 558692^2 + 904966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1131100211986 and 1131100212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28277505281 + ... + 28277505320.

It is an arithmetic number, because the mean of its divisors is an integer number (197942537107).

Almost surely, 2^{1131100212020} is an apocalyptic number.

1131100212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131100212020 is an abundant number, since it is smaller than the sum of its proper divisors (1244210233264).

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

1131100212020 is a wasteful number, since it uses less digits than its factorization.

1131100212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56555010610 (or 56555010608 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1131100212020 its reverse (202120011311), we get a palindrome (1333220223331).

The spelling of 1131100212020 in words is "one trillion, one hundred thirty-one billion, one hundred million, two hundred twelve thousand, twenty".