1204213321 has 8 divisors (see below), whose sum is σ = 1260569088. Its totient is φ = 1148952000.

The previous prime is 1204213319. The next prime is 1204213349. The reversal of 1204213321 is 1233124021.

It is a happy number.

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 1204213321 - 2¹ = 1204213319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204213121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271360 + ... + 275761.

It is an arithmetic number, because the mean of its divisors is an integer number (157571136).

Almost surely, 2^1204213321 is an apocalyptic number.

It is an amenable number.

1204213321 is a deficient number, since it is larger than the sum of its proper divisors (56355767).

1204213321 is an equidigital number, since it uses as much as digits as its factorization.

1204213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547223.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1204213321 is about 34701.7769141582. The cubic root of 1204213321 is about 1063.9008168920.

Adding to 1204213321 its reverse (1233124021), we get a palindrome (2437337342).

The spelling of 1204213321 in words is "one billion, two hundred four million, two hundred thirteen thousand, three hundred twenty-one".