120243427 has 2 divisors, whose sum is σ = 120243428. Its totient is φ = 120243426.

The previous prime is 120243407. The next prime is 120243433. The reversal of 120243427 is 724342021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120243427 is a prime.

It is not a weakly prime, because it can be changed into another prime (120243407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60121713 + 60121714.

It is an arithmetic number, because the mean of its divisors is an integer number (60121714).

Almost surely, 2^120243427 is an apocalyptic number.

120243427 is a deficient number, since it is larger than the sum of its proper divisors (1).

120243427 is an equidigital number, since it uses as much as digits as its factorization.

120243427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 120243427 is about 10965.5563926323. The cubic root of 120243427 is about 493.5757132662.

Adding to 120243427 its reverse (724342021), we get a palindrome (844585448).

It can be divided in two parts, 12024 and 3427, that added together give a palindrome (15451).

The spelling of 120243427 in words is "one hundred twenty million, two hundred forty-three thousand, four hundred twenty-seven".