120240431 has 2 divisors, whose sum is σ = 120240432. Its totient is φ = 120240430.

The previous prime is 120240383. The next prime is 120240451. The reversal of 120240431 is 134042021.

It is a strong prime.

It is an emirp because it is prime and its reverse (134042021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120240431 - 2¹⁰ = 120239407 is a prime.

It is a super-2 number, since 2×120240431² = 28915522494131522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120240451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60120215 + 60120216.

It is an arithmetic number, because the mean of its divisors is an integer number (60120216).

Almost surely, 2^120240431 is an apocalyptic number.

120240431 is a deficient number, since it is larger than the sum of its proper divisors (1).

120240431 is an equidigital number, since it uses as much as digits as its factorization.

120240431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 120240431 is about 10965.4197822062. The cubic root of 120240431 is about 493.5716139011.

Adding to 120240431 its reverse (134042021), we get a palindrome (254282452).

The spelling of 120240431 in words is "one hundred twenty million, two hundred forty thousand, four hundred thirty-one".