23211220303121 has 4 divisors (see below), whose sum is σ = 23211237230832. Its totient is φ = 23211203375412.

The previous prime is 23211220303079. The next prime is 23211220303123. The reversal of 23211220303121 is 12130302211232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23211220303121 - 2³⁴ = 23194040433937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23211220303123) 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, 6206351 + ... + 9216356.

It is an arithmetic number, because the mean of its divisors is an integer number (5802809307708).

Almost surely, 2^{23211220303121} is an apocalyptic number.

It is an amenable number.

23211220303121 is a deficient number, since it is larger than the sum of its proper divisors (16927711).

23211220303121 is a wasteful number, since it uses less digits than its factorization.

23211220303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16927710.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23211220303121 its reverse (12130302211232), we get a palindrome (35341522514353).

The spelling of 23211220303121 in words is "twenty-three trillion, two hundred eleven billion, two hundred twenty million, three hundred three thousand, one hundred twenty-one".