23311321211 has 2 divisors, whose sum is σ = 23311321212. Its totient is φ = 23311321210.

The previous prime is 23311321199. The next prime is 23311321223. The reversal of 23311321211 is 11212311332.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (23311321199) and next prime (23311321223).

It is a cyclic number.

It is not a de Polignac number, because 23311321211 - 2⁶ = 23311321147 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311321291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655660605 + 11655660606.

It is an arithmetic number, because the mean of its divisors is an integer number (11655660606).

Almost surely, 2^23311321211 is an apocalyptic number.

23311321211 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311321211 is an equidigital number, since it uses as much as digits as its factorization.

23311321211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

Adding to 23311321211 its reverse (11212311332), we get a palindrome (34523632543).

The spelling of 23311321211 in words is "twenty-three billion, three hundred eleven million, three hundred twenty-one thousand, two hundred eleven".