20041011242123 has 2 divisors, whose sum is σ = 20041011242124. Its totient is φ = 20041011242122.

The previous prime is 20041011242101. The next prime is 20041011242243. The reversal of 20041011242123 is 32124211014002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20041011242123 is a prime.

It is not a weakly prime, because it can be changed into another prime (20041011248123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020505621061 + 10020505621062.

It is an arithmetic number, because the mean of its divisors is an integer number (10020505621062).

Almost surely, 2^{20041011242123} is an apocalyptic number.

20041011242123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041011242123 is an equidigital number, since it uses as much as digits as its factorization.

20041011242123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20041011242123 its reverse (32124211014002), we get a palindrome (52165222256125).

The spelling of 20041011242123 in words is "twenty trillion, forty-one billion, eleven million, two hundred forty-two thousand, one hundred twenty-three".