23311012321 has 2 divisors, whose sum is σ = 23311012322. Its totient is φ = 23311012320.

The previous prime is 23311012297. The next prime is 23311012327. The reversal of 23311012321 is 12321011332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22444534225 + 866478096 = 149815^2 + 29436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23311012321 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311012327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655506160 + 11655506161.

It is an arithmetic number, because the mean of its divisors is an integer number (11655506161).

Almost surely, 2^23311012321 is an apocalyptic number.

It is an amenable number.

23311012321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311012321 is an equidigital number, since it uses as much as digits as its factorization.

23311012321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23311012321 its reverse (12321011332), we get a palindrome (35632023653).

The spelling of 23311012321 in words is "twenty-three billion, three hundred eleven million, twelve thousand, three hundred twenty-one".