120002143091 has 4 divisors (see below), whose sum is σ = 120388002384. Its totient is φ = 119616283800.

The previous prime is 120002143033. The next prime is 120002143097. The reversal of 120002143091 is 190341200021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120002143091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120002143097) 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 3 ways as a sum of consecutive naturals, for example, 192929180 + ... + 192929801.

It is an arithmetic number, because the mean of its divisors is an integer number (30097000596).

Almost surely, 2^120002143091 is an apocalyptic number.

120002143091 is a deficient number, since it is larger than the sum of its proper divisors (385859293).

120002143091 is an equidigital number, since it uses as much as digits as its factorization.

120002143091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385859292.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 120002143091 in words is "one hundred twenty billion, two million, one hundred forty-three thousand, ninety-one".