120224431 has 4 divisors (see below), whose sum is σ = 123020392. Its totient is φ = 117428472.

The previous prime is 120224353. The next prime is 120224437. The reversal of 120224431 is 134422021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134422021 = 47 ⋅2860043.

It is a cyclic number.

It is not a de Polignac number, because 120224431 - 2⁷ = 120224303 is a prime.

It is a super-2 number, since 2×120224431² = 28907827618547522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120224399 and 120224408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120224437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397916 + ... + 1398001.

It is an arithmetic number, because the mean of its divisors is an integer number (30755098).

Almost surely, 2^120224431 is an apocalyptic number.

120224431 is a deficient number, since it is larger than the sum of its proper divisors (2795961).

120224431 is an equidigital number, since it uses as much as digits as its factorization.

120224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795960.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 120224431 is about 10964.6901917017. The cubic root of 120224431 is about 493.5497202777.

Adding to 120224431 its reverse (134422021), we get a palindrome (254646452).

The spelling of 120224431 in words is "one hundred twenty million, two hundred twenty-four thousand, four hundred thirty-one".