20242442123 has 2 divisors, whose sum is σ = 20242442124. Its totient is φ = 20242442122.

The previous prime is 20242442111. The next prime is 20242442153. The reversal of 20242442123 is 32124424202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20242442123 - 2¹⁶ = 20242376587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20242442092 and 20242442101.

It is not a weakly prime, because it can be changed into another prime (20242442153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121221061 + 10121221062.

It is an arithmetic number, because the mean of its divisors is an integer number (10121221062).

Almost surely, 2^20242442123 is an apocalyptic number.

20242442123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242442123 is an equidigital number, since it uses as much as digits as its factorization.

20242442123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20242442123 its reverse (32124424202), we get a palindrome (52366866325).

The spelling of 20242442123 in words is "twenty billion, two hundred forty-two million, four hundred forty-two thousand, one hundred twenty-three".