321243601 has 16 divisors (see below), whose sum is σ = 372254080. Its totient is φ = 271537920.

The previous prime is 321243563. The next prime is 321243619. The reversal of 321243601 is 106342123.

It is a cyclic number.

It is not a de Polignac number, because 321243601 - 2¹⁵ = 321210833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321243641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183010 + ... + 184756.

It is an arithmetic number, because the mean of its divisors is an integer number (23265880).

Almost surely, 2^321243601 is an apocalyptic number.

It is an amenable number.

321243601 is a deficient number, since it is larger than the sum of its proper divisors (51010479).

321243601 is a wasteful number, since it uses less digits than its factorization.

321243601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 321243601 is about 17923.2698188695. The cubic root of 321243601 is about 684.8752865822.

Adding to 321243601 its reverse (106342123), we get a palindrome (427585724).

The spelling of 321243601 in words is "three hundred twenty-one million, two hundred forty-three thousand, six hundred one".