120011000121111 has 16 divisors (see below), whose sum is σ = 176192870191488. Its totient is φ = 72054183021600.

The previous prime is 120011000121107. The next prime is 120011000121193. The reversal of 120011000121111 is 111121000110021.

It is not a de Polignac number, because 120011000121111 - 2² = 120011000121107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011000121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16993907560 + ... + 16993914621.

It is an arithmetic number, because the mean of its divisors is an integer number (11012054386968).

Almost surely, 2^{120011000121111} is an apocalyptic number.

120011000121111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120011000121111 is a deficient number, since it is larger than the sum of its proper divisors (56181870070377).

120011000121111 is a wasteful number, since it uses less digits than its factorization.

120011000121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33987822302.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 120011000121111 its reverse (111121000110021), we get a palindrome (231132000231132).

The spelling of 120011000121111 in words is "one hundred twenty trillion, eleven billion, one hundred twenty-one thousand, one hundred eleven".