23123221201 has 8 divisors (see below), whose sum is σ = 23163065640. Its totient is φ = 23083412352.

The previous prime is 23123221193. The next prime is 23123221213. The reversal of 23123221201 is 10212232132.

It can be written as a sum of positive squares in 4 ways, for example, as 1967809600 + 21155411601 = 44360^2 + 145449^2 .

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 23123221201 - 2³ = 23123221193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23123221291) 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, 1504765 + ... + 1520053.

It is an arithmetic number, because the mean of its divisors is an integer number (2895383205).

Almost surely, 2^23123221201 is an apocalyptic number.

It is an amenable number.

23123221201 is a deficient number, since it is larger than the sum of its proper divisors (39844439).

23123221201 is a wasteful number, since it uses less digits than its factorization.

23123221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17795.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23123221201 its reverse (10212232132), we get a palindrome (33335453333).

The spelling of 23123221201 in words is "twenty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred one".