23234403220121 has 4 divisors (see below), whose sum is σ = 23244902274852. Its totient is φ = 23223904165392.

The previous prime is 23234403220099. The next prime is 23234403220129. The reversal of 23234403220121 is 12102230443232.

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 21482854201600 + 1751549018521 = 4634960^2 + 1323461^2 .

It is a cyclic number.

It is not a de Polignac number, because 23234403220121 - 2²⁶ = 23234336111257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23234403220129) 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 in 3 ways as a sum of consecutive naturals, for example, 5249524046 + ... + 5249528471.

It is an arithmetic number, because the mean of its divisors is an integer number (5811225568713).

Almost surely, 2^{23234403220121} is an apocalyptic number.

It is an amenable number.

23234403220121 is a deficient number, since it is larger than the sum of its proper divisors (10499054731).

23234403220121 is a wasteful number, since it uses less digits than its factorization.

23234403220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10499054730.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23234403220121 its reverse (12102230443232), we get a palindrome (35336633663353).

The spelling of 23234403220121 in words is "twenty-three trillion, two hundred thirty-four billion, four hundred three million, two hundred twenty thousand, one hundred twenty-one".