2211231623 has 2 divisors, whose sum is σ = 2211231624. Its totient is φ = 2211231622.

The previous prime is 2211231593. The next prime is 2211231653. The reversal of 2211231623 is 3261321122.

It is a balanced prime because it is at equal distance from previous prime (2211231593) and next prime (2211231653).

It is a cyclic number.

It is not a de Polignac number, because 2211231623 - 2⁸ = 2211231367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211231653) 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, 1105615811 + 1105615812.

It is an arithmetic number, because the mean of its divisors is an integer number (1105615812).

Almost surely, 2^2211231623 is an apocalyptic number.

2211231623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211231623 is an equidigital number, since it uses as much as digits as its factorization.

2211231623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 2211231623 is about 47023.7346772882. The cubic root of 2211231623 is about 1302.8009868772.

Adding to 2211231623 its reverse (3261321122), we get a palindrome (5472552745).

It can be divided in two parts, 22112 and 31623, that added together give a palindrome (53735).

The spelling of 2211231623 in words is "two billion, two hundred eleven million, two hundred thirty-one thousand, six hundred twenty-three".