2100011273 has 2 divisors, whose sum is σ = 2100011274. Its totient is φ = 2100011272.

The previous prime is 2100011227. The next prime is 2100011357. The reversal of 2100011273 is 3721100012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1347770944 + 752240329 = 36712^2 + 27427^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100011273 - 2¹⁰ = 2100010249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100011873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050005636 + 1050005637.

It is an arithmetic number, because the mean of its divisors is an integer number (1050005637).

Almost surely, 2^2100011273 is an apocalyptic number.

It is an amenable number.

2100011273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100011273 is an equidigital number, since it uses as much as digits as its factorization.

2100011273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 2100011273 is about 45825.8799479072. The cubic root of 2100011273 is about 1280.5814564070.

Adding to 2100011273 its reverse (3721100012), we get a palindrome (5821111285).

The spelling of 2100011273 in words is "two billion, one hundred million, eleven thousand, two hundred seventy-three".