641011423 has 6 divisors (see below), whose sum is σ = 694113144. Its totient is φ = 591702696.

The previous prime is 641011411. The next prime is 641011429. The reversal of 641011423 is 324110146.

It is not a de Polignac number, because 641011423 - 2⁵ = 641011391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641011394 and 641011403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641011429) 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 in 5 ways as a sum of consecutive naturals, for example, 1896315 + ... + 1896652.

It is an arithmetic number, because the mean of its divisors is an integer number (115685524).

Almost surely, 2^641011423 is an apocalyptic number.

641011423 is a deficient number, since it is larger than the sum of its proper divisors (53101721).

641011423 is a wasteful number, since it uses less digits than its factorization.

641011423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792993 (or 3792980 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 641011423 is about 25318.2033920261. The cubic root of 641011423 is about 862.2276047463.

Adding to 641011423 its reverse (324110146), we get a palindrome (965121569).

The spelling of 641011423 in words is "six hundred forty-one million, eleven thousand, four hundred twenty-three".