1020111010112 has 56 divisors (see below), whose sum is σ = 2094379311360. Its totient is φ = 492398323200.

The previous prime is 1020111010103. The next prime is 1020111010133. The reversal of 1020111010112 is 2110101110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020111010093 and 1020111010102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14722493 + ... + 14791619.

It is an arithmetic number, because the mean of its divisors is an integer number (37399630560).

Almost surely, 2^{1020111010112} is an apocalyptic number.

It is an amenable number.

1020111010112 is an abundant number, since it is smaller than the sum of its proper divisors (1074268301248).

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

1020111010112 is an equidigital number, since it uses as much as digits as its factorization.

1020111010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77119 (or 77109 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1020111010112 its reverse (2110101110201), we get a palindrome (3130212120313).

The spelling of 1020111010112 in words is "one trillion, twenty billion, one hundred eleven million, ten thousand, one hundred twelve".