111102020010 has 64 divisors (see below), whose sum is σ = 296301283200. Its totient is φ = 29624282496.

The previous prime is 111102019991. The next prime is 111102020023. The reversal of 111102020010 is 10020201111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111102019974 and 111102020001.

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 31 ways as a sum of consecutive naturals, for example, 5275281 + ... + 5296299.

It is an arithmetic number, because the mean of its divisors is an integer number (4629707550).

Almost surely, 2^111102020010 is an apocalyptic number.

111102020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111102020010 is an abundant number, since it is smaller than the sum of its proper divisors (185199263190).

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

111102020010 is a wasteful number, since it uses less digits than its factorization.

111102020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40612 (or 40606 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111102020010 its reverse (10020201111), we get a palindrome (121122221121).

It can be divided in two parts, 11110 and 2020010, that added together give a triangular number (2031120 = T₂₀₁₅).

The spelling of 111102020010 in words is "one hundred eleven billion, one hundred two million, twenty thousand, ten".