120001101111 has 24 divisors (see below), whose sum is σ = 179595102960. Its totient is φ = 77149691136.

The previous prime is 120001101109. The next prime is 120001101119. The reversal of 120001101111 is 111101100021.

It is not a de Polignac number, because 120001101111 - 2¹ = 120001101109 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 = 120001101093 and 120001101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001101119) 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, 1556901 + ... + 1632158.

It is an arithmetic number, because the mean of its divisors is an integer number (7483129290).

Almost surely, 2^120001101111 is an apocalyptic number.

120001101111 is a deficient number, since it is larger than the sum of its proper divisors (59594001849).

120001101111 is a wasteful number, since it uses less digits than its factorization.

120001101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189215 (or 3189212 counting only the distinct ones).

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

Adding to 120001101111 its reverse (111101100021), we get a palindrome (231102201132).

It can be divided in two parts, 12000 and 1101111, that added together give a palindrome (1113111).

The spelling of 120001101111 in words is "one hundred twenty billion, one million, one hundred one thousand, one hundred eleven".