2211023231 has 2 divisors, whose sum is σ = 2211023232. Its totient is φ = 2211023230.

The previous prime is 2211023161. The next prime is 2211023233. The reversal of 2211023231 is 1323201122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211023231 - 2¹⁸ = 2210761087 is a prime.

It is a super-2 number, since 2×2211023231² = 9777247456043358722, which contains 22 as substring.

Together with 2211023233, 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 (2211023233) 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, 1105511615 + 1105511616.

It is an arithmetic number, because the mean of its divisors is an integer number (1105511616).

Almost surely, 2^2211023231 is an apocalyptic number.

2211023231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211023231 is an equidigital number, since it uses as much as digits as its factorization.

2211023231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2211023231 is about 47021.5188078820. The cubic root of 2211023231 is about 1302.7600591834.

Adding to 2211023231 its reverse (1323201122), we get a palindrome (3534224353).

The spelling of 2211023231 in words is "two billion, two hundred eleven million, twenty-three thousand, two hundred thirty-one".