2101445055253 has 2 divisors, whose sum is σ = 2101445055254. Its totient is φ = 2101445055252.

The previous prime is 2101445055233. The next prime is 2101445055271. The reversal of 2101445055253 is 3525505441012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087269169284 + 1014175885969 = 1042722^2 + 1007063^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101445055253 - 2³³ = 2092855120661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101445055233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050722527626 + 1050722527627.

It is an arithmetic number, because the mean of its divisors is an integer number (1050722527627).

Almost surely, 2^{2101445055253} is an apocalyptic number.

It is an amenable number.

2101445055253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101445055253 is an equidigital number, since it uses as much as digits as its factorization.

2101445055253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 2101445055253 in words is "two trillion, one hundred one billion, four hundred forty-five million, fifty-five thousand, two hundred fifty-three".