20441263123 has 2 divisors, whose sum is σ = 20441263124. Its totient is φ = 20441263122.

The previous prime is 20441263121. The next prime is 20441263153. The reversal of 20441263123 is 32136214402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20441263123 - 2¹ = 20441263121 is a prime.

Together with 20441263121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20441263091 and 20441263100.

It is not a weakly prime, because it can be changed into another prime (20441263121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220631561 + 10220631562.

It is an arithmetic number, because the mean of its divisors is an integer number (10220631562).

Almost surely, 2^20441263123 is an apocalyptic number.

20441263123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441263123 is an equidigital number, since it uses as much as digits as its factorization.

20441263123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20441263123 its reverse (32136214402), we get a palindrome (52577477525).

The spelling of 20441263123 in words is "twenty billion, four hundred forty-one million, two hundred sixty-three thousand, one hundred twenty-three".