1323210001 has 4 divisors (see below), whose sum is σ = 1342959472. Its totient is φ = 1303460532.

The previous prime is 1323209963. The next prime is 1323210019. The reversal of 1323210001 is 1000123231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1323210001 - 2¹⁷ = 1323078929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323210701) 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, 9874635 + ... + 9874768.

It is an arithmetic number, because the mean of its divisors is an integer number (335739868).

Almost surely, 2^1323210001 is an apocalyptic number.

It is an amenable number.

1323210001 is a deficient number, since it is larger than the sum of its proper divisors (19749471).

1323210001 is an equidigital number, since it uses as much as digits as its factorization.

1323210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19749470.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1323210001 is about 36375.9536094932. The cubic root of 1323210001 is about 1097.8497944281.

Adding to 1323210001 its reverse (1000123231), we get a palindrome (2323333232).

The spelling of 1323210001 in words is "one billion, three hundred twenty-three million, two hundred ten thousand, one".