431431934249 has 2 divisors, whose sum is σ = 431431934250. Its totient is φ = 431431934248.

The previous prime is 431431934159. The next prime is 431431934251. The reversal of 431431934249 is 942439134134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415412475625 + 16019458624 = 644525^2 + 126568^2 .

It is a cyclic number.

It is not a de Polignac number, because 431431934249 - 2⁸ = 431431933993 is a prime.

It is a super-2 number, since 2×431431934249² (a number of 24 digits) contains 22 as substring.

Together with 431431934251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431431934149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215715967124 + 215715967125.

It is an arithmetic number, because the mean of its divisors is an integer number (215715967125).

Almost surely, 2^431431934249 is an apocalyptic number.

It is an amenable number.

431431934249 is a deficient number, since it is larger than the sum of its proper divisors (1).

431431934249 is an equidigital number, since it uses as much as digits as its factorization.

431431934249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 47.

The spelling of 431431934249 in words is "four hundred thirty-one billion, four hundred thirty-one million, nine hundred thirty-four thousand, two hundred forty-nine".