120231121 has 2 divisors, whose sum is σ = 120231122. Its totient is φ = 120231120.

The previous prime is 120231109. The next prime is 120231169. The reversal of 120231121 is 121132021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89094721 + 31136400 = 9439^2 + 5580^2 .

It is a cyclic number.

It is not a de Polignac number, because 120231121 - 2⁹ = 120230609 is a prime.

It is not a weakly prime, because it can be changed into another prime (120231421) 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 as a sum of consecutive naturals, namely, 60115560 + 60115561.

It is an arithmetic number, because the mean of its divisors is an integer number (60115561).

Almost surely, 2^120231121 is an apocalyptic number.

It is an amenable number.

120231121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120231121 is an equidigital number, since it uses as much as digits as its factorization.

120231121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 120231121 is about 10964.9952576369. The cubic root of 120231121 is about 493.5588747853.

Adding to 120231121 its reverse (121132021), we get a palindrome (241363142).

It can be divided in two parts, 1202 and 31121, that added together give a palindrome (32323).

The spelling of 120231121 in words is "one hundred twenty million, two hundred thirty-one thousand, one hundred twenty-one".