1641110423 has 2 divisors, whose sum is σ = 1641110424. Its totient is φ = 1641110422.

The previous prime is 1641110417. The next prime is 1641110441. The reversal of 1641110423 is 3240111461.

It is a weak prime.

It is an emirp because it is prime and its reverse (3240111461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1641110423 - 2⁴ = 1641110407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641110473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820555211 + 820555212.

It is an arithmetic number, because the mean of its divisors is an integer number (820555212).

Almost surely, 2^1641110423 is an apocalyptic number.

1641110423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641110423 is an equidigital number, since it uses as much as digits as its factorization.

1641110423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1641110423 is about 40510.6211134808. The cubic root of 1641110423 is about 1179.5398049886.

Adding to 1641110423 its reverse (3240111461), we get a palindrome (4881221884).

The spelling of 1641110423 in words is "one billion, six hundred forty-one million, one hundred ten thousand, four hundred twenty-three".