23111032321 has 8 divisors (see below), whose sum is σ = 25747039080. Its totient is φ = 20597630592.

The previous prime is 23111032319. The next prime is 23111032361. The reversal of 23111032321 is 12323011132.

It can be written as a sum of positive squares in 4 ways, for example, as 2651735025 + 20459297296 = 51495^2 + 143036^2 .

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 23111032321 - 2¹ = 23111032319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23111032361) 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, 30650860 + ... + 30651613.

It is an arithmetic number, because the mean of its divisors is an integer number (3218379885).

Almost surely, 2^23111032321 is an apocalyptic number.

It is an amenable number.

23111032321 is a deficient number, since it is larger than the sum of its proper divisors (2636006759).

23111032321 is a wasteful number, since it uses less digits than its factorization.

23111032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61302515.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23111032321 its reverse (12323011132), we get a palindrome (35434043453).

The spelling of 23111032321 in words is "twenty-three billion, one hundred eleven million, thirty-two thousand, three hundred twenty-one".