111031122000020 has 24 divisors (see below), whose sum is σ = 234051916500864. Its totient is φ = 44243580171296.

The previous prime is 111031121999977. The next prime is 111031122000107. The reversal of 111031122000020 is 20000221130111.

It is a junction number, because it is equal to n+sod(n) for n = 111031121999959 and 111031122000004.

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, 10554283904 + ... + 10554294423.

It is an arithmetic number, because the mean of its divisors is an integer number (9752163187536).

Almost surely, 2^{111031122000020} is an apocalyptic number.

111031122000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111031122000020 is an abundant number, since it is smaller than the sum of its proper divisors (123020794500844).

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

111031122000020 is a wasteful number, since it uses less digits than its factorization.

111031122000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21108578599 (or 21108578597 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111031122000020 its reverse (20000221130111), we get a palindrome (131031343130131).

The spelling of 111031122000020 in words is "one hundred eleven trillion, thirty-one billion, one hundred twenty-two million, twenty", and thus it is an aban number.