1111100010020 has 96 divisors (see below), whose sum is σ = 3132835888896. Its totient is φ = 319677120000.

The previous prime is 1111100010011. The next prime is 1111100010029. The reversal of 1111100010020 is 200100011111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1111100010011) and next prime (1111100010029).

It is not an unprimeable number, because it can be changed into a prime (1111100010029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27729731 + ... + 27769770.

It is an arithmetic number, because the mean of its divisors is an integer number (32633707176).

Almost surely, 2^{1111100010020} is an apocalyptic number.

1111100010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111100010020 is an abundant number, since it is smaller than the sum of its proper divisors (2021735878876).

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

1111100010020 is a wasteful number, since it uses less digits than its factorization.

1111100010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55499541 (or 55499539 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1111100010020 its reverse (200100011111), we get a palindrome (1311200021131).

The spelling of 1111100010020 in words is "one trillion, one hundred eleven billion, one hundred million, ten thousand, twenty".