252323221003 has 4 divisors (see below), whose sum is σ = 288369395440. Its totient is φ = 216277046568.

The previous prime is 252323220983. The next prime is 252323221009. The reversal of 252323221003 is 300122323252.

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

It is a cyclic number.

It is not a de Polignac number, because 252323221003 - 2⁹ = 252323220491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252323221009) 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, 18023087208 + ... + 18023087221.

It is an arithmetic number, because the mean of its divisors is an integer number (72092348860).

Almost surely, 2^252323221003 is an apocalyptic number.

252323221003 is a deficient number, since it is larger than the sum of its proper divisors (36046174437).

252323221003 is an equidigital number, since it uses as much as digits as its factorization.

252323221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36046174436.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 252323221003 its reverse (300122323252), we get a palindrome (552445544255).

The spelling of 252323221003 in words is "two hundred fifty-two billion, three hundred twenty-three million, two hundred twenty-one thousand, three".