430431031 has 2 divisors, whose sum is σ = 430431032. Its totient is φ = 430431030.

The previous prime is 430431017. The next prime is 430431047. The reversal of 430431031 is 130134034.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-430431031 is a prime.

It is a super-2 number, since 2×430431031² = 370541744895445922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (430431731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215215515 + 215215516.

It is an arithmetic number, because the mean of its divisors is an integer number (215215516).

Almost surely, 2^430431031 is an apocalyptic number.

430431031 is a deficient number, since it is larger than the sum of its proper divisors (1).

430431031 is an equidigital number, since it uses as much as digits as its factorization.

430431031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 430431031 is about 20746.8318304265. The cubic root of 430431031 is about 755.0363451942.

Adding to 430431031 its reverse (130134034), we get a palindrome (560565065).

The spelling of 430431031 in words is "four hundred thirty million, four hundred thirty-one thousand, thirty-one".