1230321401 has 4 divisors (see below), whose sum is σ = 1232767872. Its totient is φ = 1227874932.

The previous prime is 1230321371. The next prime is 1230321403. The reversal of 1230321401 is 1041230321.

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 1230321401 - 2²⁶ = 1163212537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230321401.

It is not an unprimeable number, because it can be changed into a prime (1230321403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222481 + ... + 1223486.

It is an arithmetic number, because the mean of its divisors is an integer number (308191968).

Almost surely, 2^1230321401 is an apocalyptic number.

It is an amenable number.

1230321401 is a deficient number, since it is larger than the sum of its proper divisors (2446471).

1230321401 is an equidigital number, since it uses as much as digits as its factorization.

1230321401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446470.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1230321401 is about 35075.9376353648. The cubic root of 1230321401 is about 1071.5345846788.

Adding to 1230321401 its reverse (1041230321), we get a palindrome (2271551722).

The spelling of 1230321401 in words is "one billion, two hundred thirty million, three hundred twenty-one thousand, four hundred one".