123444020443 has 2 divisors, whose sum is σ = 123444020444. Its totient is φ = 123444020442.

The previous prime is 123444020387. The next prime is 123444020459. The reversal of 123444020443 is 344020444321.

It is a strong prime.

It is an emirp because it is prime and its reverse (344020444321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123444020443 - 2²¹ = 123441923291 is a prime.

It is not a weakly prime, because it can be changed into another prime (123444030443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61722010221 + 61722010222.

It is an arithmetic number, because the mean of its divisors is an integer number (61722010222).

Almost surely, 2^123444020443 is an apocalyptic number.

123444020443 is a deficient number, since it is larger than the sum of its proper divisors (1).

123444020443 is an equidigital number, since it uses as much as digits as its factorization.

123444020443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 123444020443 its reverse (344020444321), we get a palindrome (467464464764).

The spelling of 123444020443 in words is "one hundred twenty-three billion, four hundred forty-four million, twenty thousand, four hundred forty-three".