23121122232011 has 2 divisors, whose sum is σ = 23121122232012. Its totient is φ = 23121122232010.

The previous prime is 23121122232001. The next prime is 23121122232083. The reversal of 23121122232011 is 11023222112132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23121122232011 - 2²⁶ = 23121055123147 is a prime.

It is not a weakly prime, because it can be changed into another prime (23121122232001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560561116005 + 11560561116006.

It is an arithmetic number, because the mean of its divisors is an integer number (11560561116006).

Almost surely, 2^{23121122232011} is an apocalyptic number.

23121122232011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23121122232011 is an equidigital number, since it uses as much as digits as its factorization.

23121122232011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 23121122232011 its reverse (11023222112132), we get a palindrome (34144344344143).

The spelling of 23121122232011 in words is "twenty-three trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred thirty-two thousand, eleven".