23011121113 has 2 divisors, whose sum is σ = 23011121114. Its totient is φ = 23011121112.

The previous prime is 23011121053. The next prime is 23011121143. The reversal of 23011121113 is 31112111032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20122273609 + 2888847504 = 141853^2 + 53748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23011121113 is a prime.

It is not a weakly prime, because it can be changed into another prime (23011121143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505560556 + 11505560557.

It is an arithmetic number, because the mean of its divisors is an integer number (11505560557).

Almost surely, 2^23011121113 is an apocalyptic number.

It is an amenable number.

23011121113 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011121113 is an equidigital number, since it uses as much as digits as its factorization.

23011121113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 23011121113 its reverse (31112111032), we get a palindrome (54123232145).

The spelling of 23011121113 in words is "twenty-three billion, eleven million, one hundred twenty-one thousand, one hundred thirteen".