120021312143 has 2 divisors, whose sum is σ = 120021312144. Its totient is φ = 120021312142.

The previous prime is 120021312119. The next prime is 120021312149. The reversal of 120021312143 is 341213120021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120021312143 - 2²⁸ = 119752876687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021312149) 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 as a sum of consecutive naturals, namely, 60010656071 + 60010656072.

It is an arithmetic number, because the mean of its divisors is an integer number (60010656072).

Almost surely, 2^120021312143 is an apocalyptic number.

120021312143 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021312143 is an equidigital number, since it uses as much as digits as its factorization.

120021312143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 120021312143 its reverse (341213120021), we get a palindrome (461234432164).

The spelling of 120021312143 in words is "one hundred twenty billion, twenty-one million, three hundred twelve thousand, one hundred forty-three".