1011112112020 has 48 divisors (see below), whose sum is σ = 2296072396800. Its totient is φ = 372554945024.

The previous prime is 1011112111991. The next prime is 1011112112047. The reversal of 1011112112020 is 202112111101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31620820 + ... + 31652779.

It is an arithmetic number, because the mean of its divisors is an integer number (47834841600).

Almost surely, 2^{1011112112020} is an apocalyptic number.

1011112112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011112112020 is an abundant number, since it is smaller than the sum of its proper divisors (1284960284780).

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

1011112112020 is a wasteful number, since it uses less digits than its factorization.

1011112112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63273672 (or 63273670 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011112112020 its reverse (202112111101), we get a palindrome (1213224223121).

The spelling of 1011112112020 in words is "one trillion, eleven billion, one hundred twelve million, one hundred twelve thousand, twenty".