431230013 has 4 divisors (see below), whose sum is σ = 449979168. Its totient is φ = 412480860.

The previous prime is 431230001. The next prime is 431230027. The reversal of 431230013 is 310032134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431230013 - 2⁶ = 431229949 is a prime.

It is a super-2 number, since 2×431230013² = 371918648223960338, 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 = 431229973 and 431230000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431230043) 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, 9374543 + ... + 9374588.

It is an arithmetic number, because the mean of its divisors is an integer number (112494792).

Almost surely, 2^431230013 is an apocalyptic number.

It is an amenable number.

431230013 is a deficient number, since it is larger than the sum of its proper divisors (18749155).

431230013 is a wasteful number, since it uses less digits than its factorization.

431230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18749154.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 431230013 is about 20766.0784213101. The cubic root of 431230013 is about 755.5032318926.

Adding to 431230013 its reverse (310032134), we get a palindrome (741262147).

The spelling of 431230013 in words is "four hundred thirty-one million, two hundred thirty thousand, thirteen".