11112102102020 has 72 divisors (see below), whose sum is σ = 23675642524296. Its totient is φ = 4380953536512.

The previous prime is 11112102101963. The next prime is 11112102102029. The reversal of 11112102102020 is 2020120121111.

It can be written as a sum of positive squares in 12 ways, for example, as 2165865569344 + 8946236532676 = 1471688^2 + 2991026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11112102101986 and 11112102102004.

It is not an unprimeable number, because it can be changed into a prime (11112102102029) 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 23 ways as a sum of consecutive naturals, for example, 159089024 + ... + 159158856.

It is an arithmetic number, because the mean of its divisors is an integer number (328828368393).

Almost surely, 2^{11112102102020} is an apocalyptic number.

11112102102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112102102020 is an abundant number, since it is smaller than the sum of its proper divisors (12563540422276).

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

11112102102020 is a wasteful number, since it uses less digits than its factorization.

11112102102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71481 (or 71406 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11112102102020 its reverse (2020120121111), we get a palindrome (13132222223131).

The spelling of 11112102102020 in words is "eleven trillion, one hundred twelve billion, one hundred two million, one hundred two thousand, twenty".