2100010020253 has 2 divisors, whose sum is σ = 2100010020254. Its totient is φ = 2100010020252.

The previous prime is 2100010020221. The next prime is 2100010020257. The reversal of 2100010020253 is 3520200100012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106794473849 + 993215546404 = 1052043^2 + 996602^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100010020253 - 2⁵ = 2100010020221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100010020257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050005010126 + 1050005010127.

It is an arithmetic number, because the mean of its divisors is an integer number (1050005010127).

Almost surely, 2^{2100010020253} is an apocalyptic number.

It is an amenable number.

2100010020253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100010020253 is an equidigital number, since it uses as much as digits as its factorization.

2100010020253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 2100010020253 its reverse (3520200100012), we get a palindrome (5620210120265).

The spelling of 2100010020253 in words is "two trillion, one hundred billion, ten million, twenty thousand, two hundred fifty-three".