11112020100 has 72 divisors (see below), whose sum is σ = 35723095520. Its totient is φ = 2963204640.

The previous prime is 11112020089. The next prime is 11112020113. The reversal of 11112020100 is 102021111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2055082 + ... + 2060481.

Almost surely, 2^11112020100 is an apocalyptic number.

11112020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112020100 is an abundant number, since it is smaller than the sum of its proper divisors (24611075420).

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

11112020100 is a wasteful number, since it uses less digits than its factorization.

11112020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115586 (or 4115573 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11112020100 its reverse (102021111), we get a palindrome (11214041211).

The spelling of 11112020100 in words is "eleven billion, one hundred twelve million, twenty thousand, one hundred".