20435201128241 has 2 divisors, whose sum is σ = 20435201128242. Its totient is φ = 20435201128240.

The previous prime is 20435201128231. The next prime is 20435201128261. The reversal of 20435201128241 is 14282110253402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19607219424016 + 827981704225 = 4428004^2 + 909935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20435201128241 is a prime.

It is not a weakly prime, because it can be changed into another prime (20435201128211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217600564120 + 10217600564121.

It is an arithmetic number, because the mean of its divisors is an integer number (10217600564121).

Almost surely, 2^{20435201128241} is an apocalyptic number.

It is an amenable number.

20435201128241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20435201128241 is an equidigital number, since it uses as much as digits as its factorization.

20435201128241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 20435201128241 in words is "twenty trillion, four hundred thirty-five billion, two hundred one million, one hundred twenty-eight thousand, two hundred forty-one".