102111200311112 has 8 divisors (see below), whose sum is σ = 191458500583350. Its totient is φ = 51055600155552.

The previous prime is 102111200311111. The next prime is 102111200311157. The reversal of 102111200311112 is 211113002111201.

It can be written as a sum of positive squares in only one way, i.e., 101796113432836 + 315086878276 = 10089406^2 + 561326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (102111200311111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6381950019437 + ... + 6381950019452.

Almost surely, 2^{102111200311112} is an apocalyptic number.

It is an amenable number.

102111200311112 is a deficient number, since it is larger than the sum of its proper divisors (89347300272238).

102111200311112 is a wasteful number, since it uses less digits than its factorization.

102111200311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12763900038895 (or 12763900038891 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 102111200311112 its reverse (211113002111201), we get a palindrome (313224202422313).

The spelling of 102111200311112 in words is "one hundred two trillion, one hundred eleven billion, two hundred million, three hundred eleven thousand, one hundred twelve".