120010011111 has 24 divisors (see below), whose sum is σ = 179040536064. Its totient is φ = 77382164880.

The previous prime is 120010011103. The next prime is 120010011119. The reversal of 120010011111 is 111110010021.

It is an interprime number because it is at equal distance from previous prime (120010011103) and next prime (120010011119).

It is not a de Polignac number, because 120010011111 - 2³ = 120010011103 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 = 120010011093 and 120010011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120010011119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378220 + ... + 618926.

It is an arithmetic number, because the mean of its divisors is an integer number (7460022336).

Almost surely, 2^120010011111 is an apocalyptic number.

120010011111 is a deficient number, since it is larger than the sum of its proper divisors (59030524953).

120010011111 is a wasteful number, since it uses less digits than its factorization.

120010011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242531 (or 242528 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 120010011111 its reverse (111110010021), we get a palindrome (231120021132).

The spelling of 120010011111 in words is "one hundred twenty billion, ten million, eleven thousand, one hundred eleven".