23111111012321 has 8 divisors (see below), whose sum is σ = 23147217530304. Its totient is φ = 23075006680080.

The previous prime is 23111111012309. The next prime is 23111111012359. The reversal of 23111111012321 is 12321011111132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23111111012321 - 2¹⁰ = 23111111011297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23111111012293 and 23111111012302.

It is not an unprimeable number, because it can be changed into a prime (23111111042321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21298436 + ... + 22357226.

It is an arithmetic number, because the mean of its divisors is an integer number (2893402191288).

Almost surely, 2^{23111111012321} is an apocalyptic number.

It is an amenable number.

23111111012321 is a deficient number, since it is larger than the sum of its proper divisors (36106517983).

23111111012321 is a wasteful number, since it uses less digits than its factorization.

23111111012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092871.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 23111111012321 its reverse (12321011111132), we get a palindrome (35432122123453).

The spelling of 23111111012321 in words is "twenty-three trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, three hundred twenty-one".