431199134273 has 2 divisors, whose sum is σ = 431199134274. Its totient is φ = 431199134272.

The previous prime is 431199134147. The next prime is 431199134293. The reversal of 431199134273 is 372431991134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388898162689 + 42300971584 = 623617^2 + 205672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431199134273 is a prime.

It is not a weakly prime, because it can be changed into another prime (431199134293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215599567136 + 215599567137.

It is an arithmetic number, because the mean of its divisors is an integer number (215599567137).

Almost surely, 2^431199134273 is an apocalyptic number.

It is an amenable number.

431199134273 is a deficient number, since it is larger than the sum of its proper divisors (1).

431199134273 is an equidigital number, since it uses as much as digits as its factorization.

431199134273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The spelling of 431199134273 in words is "four hundred thirty-one billion, one hundred ninety-nine million, one hundred thirty-four thousand, two hundred seventy-three".