20011143423041 has 2 divisors, whose sum is σ = 20011143423042. Its totient is φ = 20011143423040.

The previous prime is 20011143422999. The next prime is 20011143423067. The reversal of 20011143423041 is 14032434111002.

It is an a-pointer prime, because the next prime (20011143423067) can be obtained adding 20011143423041 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15968047968016 + 4043095455025 = 3996004^2 + 2010745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011143423041 is a prime.

It is a super-2 number, since 2×20011143423041² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20011143423041.

It is not a weakly prime, because it can be changed into another prime (20011143423091) 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 as a sum of consecutive naturals, namely, 10005571711520 + 10005571711521.

It is an arithmetic number, because the mean of its divisors is an integer number (10005571711521).

Almost surely, 2^{20011143423041} is an apocalyptic number.

It is an amenable number.

20011143423041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011143423041 is an equidigital number, since it uses as much as digits as its factorization.

20011143423041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20011143423041 its reverse (14032434111002), we get a palindrome (34043577534043).

The spelling of 20011143423041 in words is "twenty trillion, eleven billion, one hundred forty-three million, four hundred twenty-three thousand, forty-one".