120112261 has 2 divisors, whose sum is σ = 120112262. Its totient is φ = 120112260.

The previous prime is 120112253. The next prime is 120112271. The reversal of 120112261 is 162211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118396161 + 1716100 = 10881^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 120112261 - 2³ = 120112253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120112271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60056130 + 60056131.

It is an arithmetic number, because the mean of its divisors is an integer number (60056131).

Almost surely, 2^120112261 is an apocalyptic number.

It is an amenable number.

120112261 is a deficient number, since it is larger than the sum of its proper divisors (1).

120112261 is an equidigital number, since it uses as much as digits as its factorization.

120112261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 120112261 is about 10959.5739424487. The cubic root of 120112261 is about 493.3961777237.

Adding to 120112261 its reverse (162211021), we get a palindrome (282323282).

The spelling of 120112261 in words is "one hundred twenty million, one hundred twelve thousand, two hundred sixty-one".