23121221030101 has 16 divisors (see below), whose sum is σ = 23210487075888. Its totient is φ = 23032100044800.

The previous prime is 23121221030093. The next prime is 23121221030153. The reversal of 23121221030101 is 10103012212132.

It can be written as a sum of positive squares in 8 ways, for example, as 1548456696900 + 21572764333201 = 1244370^2 + 4644649^2 .

It is a cyclic number.

It is not a de Polignac number, because 23121221030101 - 2³ = 23121221030093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121221030161) 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 in 15 ways as a sum of consecutive naturals, for example, 2986848091 + ... + 2986855831.

It is an arithmetic number, because the mean of its divisors is an integer number (1450655442243).

Almost surely, 2^{23121221030101} is an apocalyptic number.

It is an amenable number.

23121221030101 is a deficient number, since it is larger than the sum of its proper divisors (89266045787).

23121221030101 is a wasteful number, since it uses less digits than its factorization.

23121221030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15672.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 23121221030101 its reverse (10103012212132), we get a palindrome (33224233242233).

The spelling of 23121221030101 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred twenty-one million, thirty thousand, one hundred one".