111111011010102 has 64 divisors (see below), whose sum is σ = 229157088341184. Its totient is φ = 35903966054400.

The previous prime is 111111011010089. The next prime is 111111011010113. The reversal of 111111011010102 is 201010110111111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106053 + ... + 15227264.

It is an arithmetic number, because the mean of its divisors is an integer number (3580579505331).

Almost surely, 2^{111111011010102} is an apocalyptic number.

111111011010102 is an abundant number, since it is smaller than the sum of its proper divisors (118046077331082).

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

111111011010102 is a wasteful number, since it uses less digits than its factorization.

111111011010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18333633.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111111011010102 its reverse (201010110111111), we get a palindrome (312121121121213).

The spelling of 111111011010102 in words is "one hundred eleven trillion, one hundred eleven billion, eleven million, ten thousand, one hundred two".