431101422391 has 2 divisors, whose sum is σ = 431101422392. Its totient is φ = 431101422390.

The previous prime is 431101422373. The next prime is 431101422419. The reversal of 431101422391 is 193224101134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431101422391 - 2⁵ = 431101422359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431101422361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215550711195 + 215550711196.

It is an arithmetic number, because the mean of its divisors is an integer number (215550711196).

Almost surely, 2^431101422391 is an apocalyptic number.

431101422391 is a deficient number, since it is larger than the sum of its proper divisors (1).

431101422391 is an equidigital number, since it uses as much as digits as its factorization.

431101422391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 431101422391 in words is "four hundred thirty-one billion, one hundred one million, four hundred twenty-two thousand, three hundred ninety-one".