431342021224 has 16 divisors (see below), whose sum is σ = 856340777700. Its totient is φ = 202984480512.

The previous prime is 431342021221. The next prime is 431342021237. The reversal of 431342021224 is 422120243134.

It can be written as a sum of positive squares in 2 ways, for example, as 396167018724 + 35175002500 = 629418^2 + 187550^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431342021192 and 431342021201.

It is not an unprimeable number, because it can be changed into a prime (431342021221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585816119 + ... + 1585816390.

Almost surely, 2^431342021224 is an apocalyptic number.

It is an amenable number.

431342021224 is a deficient number, since it is larger than the sum of its proper divisors (424998756476).

431342021224 is a wasteful number, since it uses less digits than its factorization.

431342021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171632532 (or 3171632528 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 431342021224 its reverse (422120243134), we get a palindrome (853462264358).

The spelling of 431342021224 in words is "four hundred thirty-one billion, three hundred forty-two million, twenty-one thousand, two hundred twenty-four".