23210113020121 has 4 divisors (see below), whose sum is σ = 23648039680932. Its totient is φ = 22772186359312.

The previous prime is 23210113020071. The next prime is 23210113020137. The reversal of 23210113020121 is 12102031101232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15427887787225 + 7782225232896 = 3927835^2 + 2789664^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210113020121 - 2¹⁷ = 23210112889049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23210113027121) 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 3 ways as a sum of consecutive naturals, for example, 218963330326 + ... + 218963330431.

It is an arithmetic number, because the mean of its divisors is an integer number (5912009920233).

Almost surely, 2^{23210113020121} is an apocalyptic number.

It is an amenable number.

23210113020121 is a deficient number, since it is larger than the sum of its proper divisors (437926660811).

23210113020121 is an equidigital number, since it uses as much as digits as its factorization.

23210113020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437926660810.

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

Adding to 23210113020121 its reverse (12102031101232), we get a palindrome (35312144121353).

The spelling of 23210113020121 in words is "twenty-three trillion, two hundred ten billion, one hundred thirteen million, twenty thousand, one hundred twenty-one".