23121041101 has 2 divisors, whose sum is σ = 23121041102. Its totient is φ = 23121041100.

The previous prime is 23121041093. The next prime is 23121041113. The reversal of 23121041101 is 10114012132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22144416100 + 976625001 = 148810^2 + 31251^2 .

It is a cyclic number.

It is not a de Polignac number, because 23121041101 - 2³ = 23121041093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23121041191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560520550 + 11560520551.

It is an arithmetic number, because the mean of its divisors is an integer number (11560520551).

Almost surely, 2^23121041101 is an apocalyptic number.

It is an amenable number.

23121041101 is a deficient number, since it is larger than the sum of its proper divisors (1).

23121041101 is an equidigital number, since it uses as much as digits as its factorization.

23121041101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 23121041101 its reverse (10114012132), we get a palindrome (33235053233).

The spelling of 23121041101 in words is "twenty-three billion, one hundred twenty-one million, forty-one thousand, one hundred one".