120121143 has 16 divisors (see below), whose sum is σ = 164229120. Its totient is φ = 78060896.

The previous prime is 120121123. The next prime is 120121163. The reversal of 120121143 is 341121021.

It is an interprime number because it is at equal distance from previous prime (120121123) and next prime (120121163).

It is a cyclic number.

It is not a de Polignac number, because 120121143 - 2¹⁴ = 120104759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36346 + ... + 39512.

It is an arithmetic number, because the mean of its divisors is an integer number (10264320).

Almost surely, 2^120121143 is an apocalyptic number.

120121143 is a deficient number, since it is larger than the sum of its proper divisors (44107977).

120121143 is a wasteful number, since it uses less digits than its factorization.

120121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486.

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

The square root of 120121143 is about 10959.9791514400. The cubic root of 120121143 is about 493.4083392266.

Adding to 120121143 its reverse (341121021), we get a palindrome (461242164).

The spelling of 120121143 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred forty-three".