120000102111 has 24 divisors (see below), whose sum is σ = 178037046720. Its totient is φ = 77829650496.

The previous prime is 120000102083. The next prime is 120000102121. The reversal of 120000102111 is 111201000021.

It is a happy number.

It is not a de Polignac number, because 120000102111 - 2¹¹ = 120000100063 is a prime.

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 = 120000102093 and 120000102102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000102121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5631385 + ... + 5652653.

It is an arithmetic number, because the mean of its divisors is an integer number (7418210280).

Almost surely, 2^120000102111 is an apocalyptic number.

120000102111 is a deficient number, since it is larger than the sum of its proper divisors (58036944609).

120000102111 is a wasteful number, since it uses less digits than its factorization.

120000102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38255 (or 38252 counting only the distinct ones).

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

Adding to 120000102111 its reverse (111201000021), we get a palindrome (231201102132).

It can be divided in two parts, 120000 and 102111, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 120000102111 in words is "one hundred twenty billion, one hundred two thousand, one hundred eleven".