111111100202011 has 32 divisors (see below), whose sum is σ = 136817953090560. Its totient is φ = 87869770724736.

The previous prime is 111111100201991. The next prime is 111111100202017. The reversal of 111111100202011 is 110202001111111.

It is not a de Polignac number, because 111111100202011 - 2¹¹ = 111111100199963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 111111100201982 and 111111100202000.

It is not an unprimeable number, because it can be changed into a prime (111111100202017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1718171700 + ... + 1718236366.

It is an arithmetic number, because the mean of its divisors is an integer number (4275561034080).

Almost surely, 2^{111111100202011} is an apocalyptic number.

111111100202011 is a deficient number, since it is larger than the sum of its proper divisors (25706852888549).

111111100202011 is a wasteful number, since it uses less digits than its factorization.

111111100202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73483.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111111100202011 its reverse (110202001111111), we get a palindrome (221313101313122).

It can be divided in two parts, 111111100 and 202011, that added together give a palindrome (111313111).

The spelling of 111111100202011 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred million, two hundred two thousand, eleven".