23123330305 has 16 divisors (see below), whose sum is σ = 28082126160. Its totient is φ = 18276876288.

The previous prime is 23123330299. The next prime is 23123330333. The reversal of 23123330305 is 50303332132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1048205376 + 22075124929 = 32376^2 + 148577^2 .

It is a cyclic number.

It is not a de Polignac number, because 23123330305 - 2¹¹ = 23123328257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23123330305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132289 + ... + 252481.

It is an arithmetic number, because the mean of its divisors is an integer number (1755132885).

Almost surely, 2^23123330305 is an apocalyptic number.

It is an amenable number.

23123330305 is a deficient number, since it is larger than the sum of its proper divisors (4958795855).

23123330305 is a wasteful number, since it uses less digits than its factorization.

23123330305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120660.

The product of its (nonzero) digits is 4860, while the sum is 25.

Adding to 23123330305 its reverse (50303332132), we get a palindrome (73426662437).

The spelling of 23123330305 in words is "twenty-three billion, one hundred twenty-three million, three hundred thirty thousand, three hundred five".