120244143989 has 2 divisors, whose sum is σ = 120244143990. Its totient is φ = 120244143988.

The previous prime is 120244143961. The next prime is 120244144087. The reversal of 120244143989 is 989341442021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75377702500 + 44866441489 = 274550^2 + 211817^2 .

It is a cyclic number.

It is not a de Polignac number, because 120244143989 - 2¹² = 120244139893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120244143889) 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, 60122071994 + 60122071995.

It is an arithmetic number, because the mean of its divisors is an integer number (60122071995).

Almost surely, 2^120244143989 is an apocalyptic number.

It is an amenable number.

120244143989 is a deficient number, since it is larger than the sum of its proper divisors (1).

120244143989 is an equidigital number, since it uses as much as digits as its factorization.

120244143989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 120244143989 in words is "one hundred twenty billion, two hundred forty-four million, one hundred forty-three thousand, nine hundred eighty-nine".