20323123441 has 4 divisors (see below), whose sum is σ = 20323942884. Its totient is φ = 20322304000.

The previous prime is 20323123439. The next prime is 20323123451. The reversal of 20323123441 is 14432132302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10856806416 + 9466317025 = 104196^2 + 97295^2 .

It is a cyclic number.

It is not a de Polignac number, because 20323123441 - 2¹ = 20323123439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323123451) 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 3 ways as a sum of consecutive naturals, for example, 371320 + ... + 422521.

It is an arithmetic number, because the mean of its divisors is an integer number (5080985721).

Almost surely, 2^20323123441 is an apocalyptic number.

It is an amenable number.

20323123441 is a deficient number, since it is larger than the sum of its proper divisors (819443).

20323123441 is an equidigital number, since it uses as much as digits as its factorization.

20323123441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819442.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20323123441 its reverse (14432132302), we get a palindrome (34755255743).

The spelling of 20323123441 in words is "twenty billion, three hundred twenty-three million, one hundred twenty-three thousand, four hundred forty-one".