431430019 has 2 divisors, whose sum is σ = 431430020. Its totient is φ = 431430018.

The previous prime is 431429987. The next prime is 431430059. The reversal of 431430019 is 910034134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431430019 - 2⁵ = 431429987 is a prime.

It is a super-2 number, since 2×431430019² = 372263722588680722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431429975 and 431430002.

It is not a weakly prime, because it can be changed into another prime (431430059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215715009 + 215715010.

It is an arithmetic number, because the mean of its divisors is an integer number (215715010).

Almost surely, 2^431430019 is an apocalyptic number.

431430019 is a deficient number, since it is larger than the sum of its proper divisors (1).

431430019 is an equidigital number, since it uses as much as digits as its factorization.

431430019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 431430019 is about 20770.8935532394. The cubic root of 431430019 is about 755.6200155268.

The spelling of 431430019 in words is "four hundred thirty-one million, four hundred thirty thousand, nineteen".