23111030309 has 8 divisors (see below), whose sum is σ = 23331832920. Its totient is φ = 22890387456.

The previous prime is 23111030281. The next prime is 23111030357. The reversal of 23111030309 is 90303011132.

It can be written as a sum of positive squares in 4 ways, for example, as 17205568900 + 5905461409 = 131170^2 + 76847^2 .

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 23111030309 - 2⁸ = 23111030053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111036309) 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, 261569 + ... + 338585.

It is an arithmetic number, because the mean of its divisors is an integer number (2916479115).

Almost surely, 2^23111030309 is an apocalyptic number.

It is an amenable number.

23111030309 is a deficient number, since it is larger than the sum of its proper divisors (220802611).

23111030309 is a wasteful number, since it uses less digits than its factorization.

23111030309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79879.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 23111030309 in words is "twenty-three billion, one hundred eleven million, thirty thousand, three hundred nine".