23312121111101 has 2 divisors, whose sum is σ = 23312121111102. Its totient is φ = 23312121111100.

The previous prime is 23312121111073. The next prime is 23312121111131. The reversal of 23312121111101 is 10111112121332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19295163175876 + 4016957935225 = 4392626^2 + 2004235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23312121111101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23312121111131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656060555550 + 11656060555551.

It is an arithmetic number, because the mean of its divisors is an integer number (11656060555551).

Almost surely, 2^{23312121111101} is an apocalyptic number.

It is an amenable number.

23312121111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

23312121111101 is an equidigital number, since it uses as much as digits as its factorization.

23312121111101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 23312121111101 its reverse (10111112121332), we get a palindrome (33423233232433).

The spelling of 23312121111101 in words is "twenty-three trillion, three hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, one hundred one".