1100111320020 has 24 divisors (see below), whose sum is σ = 3080311696224. Its totient is φ = 293363018656.

The previous prime is 1100111319959. The next prime is 1100111320111. The reversal of 1100111320020 is 200231110011.

It is a super-2 number, since 2×1100111320020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1100111319978 and 1100111320005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9167594274 + ... + 9167594393.

It is an arithmetic number, because the mean of its divisors is an integer number (128346320676).

Almost surely, 2^{1100111320020} is an apocalyptic number.

1100111320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100111320020 is an abundant number, since it is smaller than the sum of its proper divisors (1980200376204).

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

1100111320020 is a wasteful number, since it uses less digits than its factorization.

1100111320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335188679 (or 18335188677 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1100111320020 its reverse (200231110011), we get a palindrome (1300342430031).

The spelling of 1100111320020 in words is "one trillion, one hundred billion, one hundred eleven million, three hundred twenty thousand, twenty".