245401404211001 has 2 divisors, whose sum is σ = 245401404211002. Its totient is φ = 245401404211000.

The previous prime is 245401404210929. The next prime is 245401404211057. The reversal of 245401404211001 is 100112404104542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236983856718400 + 8417547492601 = 15394280^2 + 2901301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245401404211001 is a prime.

It is not a weakly prime, because it can be changed into another prime (245401404219001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122700702105500 + 122700702105501.

It is an arithmetic number, because the mean of its divisors is an integer number (122700702105501).

Almost surely, 2^{245401404211001} is an apocalyptic number.

It is an amenable number.

245401404211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

245401404211001 is an equidigital number, since it uses as much as digits as its factorization.

245401404211001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 245401404211001 its reverse (100112404104542), we get a palindrome (345513808315543).

The spelling of 245401404211001 in words is "two hundred forty-five trillion, four hundred one billion, four hundred four million, two hundred eleven thousand, one".