2100231311 has 2 divisors, whose sum is σ = 2100231312. Its totient is φ = 2100231310.

The previous prime is 2100231251. The next prime is 2100231313. The reversal of 2100231311 is 1131320012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100231311 - 2²⁶ = 2033122447 is a prime.

Together with 2100231313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100231313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050115655 + 1050115656.

It is an arithmetic number, because the mean of its divisors is an integer number (1050115656).

Almost surely, 2^2100231311 is an apocalyptic number.

2100231311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100231311 is an equidigital number, since it uses as much as digits as its factorization.

2100231311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2100231311 is about 45828.2806899844. The cubic root of 2100231311 is about 1280.6261810466.

Adding to 2100231311 its reverse (1131320012), we get a palindrome (3231551323).

The spelling of 2100231311 in words is "two billion, one hundred million, two hundred thirty-one thousand, three hundred eleven".