1111010012020 has 24 divisors (see below), whose sum is σ = 2387379655584. Its totient is φ = 434069027616.

The previous prime is 1111010012003. The next prime is 1111010012039. The reversal of 1111010012020 is 202100101111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1111010011988 and 1111010012006.

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, 645935194 + ... + 645936913.

It is an arithmetic number, because the mean of its divisors is an integer number (99474152316).

Almost surely, 2^{1111010012020} is an apocalyptic number.

1111010012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111010012020 is an abundant number, since it is smaller than the sum of its proper divisors (1276369643564).

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

1111010012020 is a wasteful number, since it uses less digits than its factorization.

1111010012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291872159 (or 1291872157 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1111010012020 its reverse (202100101111), we get a palindrome (1313110113131).

The spelling of 1111010012020 in words is "one trillion, one hundred eleven billion, ten million, twelve thousand, twenty".