120002011012111 has 4 divisors (see below), whose sum is σ = 125219489751792. Its totient is φ = 114784532272432.

The previous prime is 120002011012057. The next prime is 120002011012127. The reversal of 120002011012111 is 111210110200021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120002011012111 - 2¹⁹ = 120002010487823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120002011012091 and 120002011012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002011012511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608739369806 + ... + 2608739369851.

It is an arithmetic number, because the mean of its divisors is an integer number (31304872437948).

Almost surely, 2^{120002011012111} is an apocalyptic number.

120002011012111 is a deficient number, since it is larger than the sum of its proper divisors (5217478739681).

120002011012111 is an equidigital number, since it uses as much as digits as its factorization.

120002011012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217478739680.

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

Adding to 120002011012111 its reverse (111210110200021), we get a palindrome (231212121212132).

The spelling of 120002011012111 in words is "one hundred twenty trillion, two billion, eleven million, twelve thousand, one hundred eleven".