120001112011001 has 16 divisors (see below), whose sum is σ = 136178829494400. Its totient is φ = 104828247508608.

The previous prime is 120001112010979. The next prime is 120001112011057. The reversal of 120001112011001 is 100110211100021.

It is not a de Polignac number, because 120001112011001 - 2⁴² = 115603065499897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120001112311001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259018541 + ... + 259481418.

It is an arithmetic number, because the mean of its divisors is an integer number (8511176843400).

Almost surely, 2^{120001112011001} is an apocalyptic number.

It is an amenable number.

120001112011001 is a deficient number, since it is larger than the sum of its proper divisors (16177717483399).

120001112011001 is a wasteful number, since it uses less digits than its factorization.

120001112011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518500928.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 120001112011001 its reverse (100110211100021), we get a palindrome (220111323111022).

The spelling of 120001112011001 in words is "one hundred twenty trillion, one billion, one hundred twelve million, eleven thousand, one".