20203120242001 has 2 divisors, whose sum is σ = 20203120242002. Its totient is φ = 20203120242000.

The previous prime is 20203120241977. The next prime is 20203120242023. The reversal of 20203120242001 is 10024202130202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16195312435600 + 4007807806401 = 4024340^2 + 2001951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20203120242001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20203120242001.

It is not a weakly prime, because it can be changed into another prime (20243120242001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101560121000 + 10101560121001.

It is an arithmetic number, because the mean of its divisors is an integer number (10101560121001).

Almost surely, 2^{20203120242001} is an apocalyptic number.

It is an amenable number.

20203120242001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203120242001 is an equidigital number, since it uses as much as digits as its factorization.

20203120242001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20203120242001 its reverse (10024202130202), we get a palindrome (30227322372203).

The spelling of 20203120242001 in words is "twenty trillion, two hundred three billion, one hundred twenty million, two hundred forty-two thousand, one".