431403340999 has 2 divisors, whose sum is σ = 431403341000. Its totient is φ = 431403340998.

The previous prime is 431403340993. The next prime is 431403341021. The reversal of 431403340999 is 999043304134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431403340999 - 2⁷ = 431403340871 is a prime.

It is a super-2 number, since 2×431403340999² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431403340993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215701670499 + 215701670500.

It is an arithmetic number, because the mean of its divisors is an integer number (215701670500).

Almost surely, 2^431403340999 is an apocalyptic number.

431403340999 is a deficient number, since it is larger than the sum of its proper divisors (1).

431403340999 is an equidigital number, since it uses as much as digits as its factorization.

431403340999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 431403340999 in words is "four hundred thirty-one billion, four hundred three million, three hundred forty thousand, nine hundred ninety-nine".