431120422 has 4 divisors (see below), whose sum is σ = 646680636. Its totient is φ = 215560210.

The previous prime is 431120399. The next prime is 431120429. The reversal of 431120422 is 224021134.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 431120422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431120429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107780104 + ... + 107780107.

It is an arithmetic number, because the mean of its divisors is an integer number (161670159).

Almost surely, 2^431120422 is an apocalyptic number.

431120422 is a deficient number, since it is larger than the sum of its proper divisors (215560214).

431120422 is a wasteful number, since it uses less digits than its factorization.

431120422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215560213.

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

The square root of 431120422 is about 20763.4395512882. The cubic root of 431120422 is about 755.4392263217.

Adding to 431120422 its reverse (224021134), we get a palindrome (655141556).

The spelling of 431120422 in words is "four hundred thirty-one million, one hundred twenty thousand, four hundred twenty-two".