102112112011 has 8 divisors (see below), whose sum is σ = 125676445664. Its totient is φ = 80792000640.

The previous prime is 102112111919. The next prime is 102112112021. The reversal of 102112112011 is 110211211201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102112112011 - 2¹⁵ = 102112079243 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 = 102112111982 and 102112112000.

It is not an unprimeable number, because it can be changed into a prime (102112112021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561055470 + ... + 561055651.

It is an arithmetic number, because the mean of its divisors is an integer number (15709555708).

Almost surely, 2^102112112011 is an apocalyptic number.

102112112011 is a deficient number, since it is larger than the sum of its proper divisors (23564333653).

102112112011 is a wasteful number, since it uses less digits than its factorization.

102112112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122111141.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102112112011 its reverse (110211211201), we get a palindrome (212323323212).

The spelling of 102112112011 in words is "one hundred two billion, one hundred twelve million, one hundred twelve thousand, eleven".