120143121 has 32 divisors (see below), whose sum is σ = 187084800. Its totient is φ = 67167360.

The previous prime is 120143119. The next prime is 120143123. The reversal of 120143121 is 121341021.

It is an interprime number because it is at equal distance from previous prime (120143119) and next prime (120143123).

It is not a de Polignac number, because 120143121 - 2¹ = 120143119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120143121.

It is not an unprimeable number, because it can be changed into a prime (120143123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230341 + ... + 230861.

It is an arithmetic number, because the mean of its divisors is an integer number (5846400).

Almost surely, 2^120143121 is an apocalyptic number.

It is an amenable number.

120143121 is a deficient number, since it is larger than the sum of its proper divisors (66941679).

120143121 is a wasteful number, since it uses less digits than its factorization.

120143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 120143121 is about 10960.9817534745. The cubic root of 120143121 is about 493.4384295918.

Adding to 120143121 its reverse (121341021), we get a palindrome (241484142).

The spelling of 120143121 in words is "one hundred twenty million, one hundred forty-three thousand, one hundred twenty-one".