2102011253 has 2 divisors, whose sum is σ = 2102011254. Its totient is φ = 2102011252.

The previous prime is 2102011201. The next prime is 2102011267. The reversal of 2102011253 is 3521102012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1928351569 + 173659684 = 43913^2 + 13178^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102011253 - 2¹⁶ = 2101945717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102091253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051005626 + 1051005627.

It is an arithmetic number, because the mean of its divisors is an integer number (1051005627).

Almost surely, 2^2102011253 is an apocalyptic number.

It is an amenable number.

2102011253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102011253 is an equidigital number, since it uses as much as digits as its factorization.

2102011253 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 17.

The square root of 2102011253 is about 45847.6962670972. The cubic root of 2102011253 is about 1280.9878549690.

Adding to 2102011253 its reverse (3521102012), we get a palindrome (5623113265).

The spelling of 2102011253 in words is "two billion, one hundred two million, eleven thousand, two hundred fifty-three".