1230220321 has 8 divisors (see below), whose sum is σ = 1342476288. Its totient is φ = 1118034000.

The previous prime is 1230220319. The next prime is 1230220331.

1230220321 is nontrivially palindromic in base 10.

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 1230220321 - 2¹ = 1230220319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230220295 and 1230220304.

It is not an unprimeable number, because it can be changed into a prime (1230220331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23776 + ... + 55006.

It is an arithmetic number, because the mean of its divisors is an integer number (167809536).

Almost surely, 2^1230220321 is an apocalyptic number.

1230220321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1230220321 is a deficient number, since it is larger than the sum of its proper divisors (112255967).

1230220321 is a wasteful number, since it uses less digits than its factorization.

1230220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34823.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1230220321 is about 35074.4967319561. The cubic root of 1230220321 is about 1071.5052390454.

It can be divided in two parts, 12302 and 20321, that added together give a palindrome (32623).

The spelling of 1230220321 in words is "one billion, two hundred thirty million, two hundred twenty thousand, three hundred twenty-one".