23212001233 has 4 divisors (see below), whose sum is σ = 23242186660. Its totient is φ = 23181815808.

The previous prime is 23212001227. The next prime is 23212001243. The reversal of 23212001233 is 33210021232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4125749824 + 19086251409 = 64232^2 + 138153^2 .

It is a cyclic number.

It is not a de Polignac number, because 23212001233 - 2¹³ = 23211993041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23212001233.

It is not an unprimeable number, because it can be changed into a prime (23212001203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15091560 + ... + 15093097.

It is an arithmetic number, because the mean of its divisors is an integer number (5810546665).

Almost surely, 2^23212001233 is an apocalyptic number.

It is an amenable number.

23212001233 is a deficient number, since it is larger than the sum of its proper divisors (30185427).

23212001233 is an equidigital number, since it uses as much as digits as its factorization.

23212001233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30185426.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23212001233 its reverse (33210021232), we get a palindrome (56422022465).

The spelling of 23212001233 in words is "twenty-three billion, two hundred twelve million, one thousand, two hundred thirty-three".