1301224321 has 8 divisors (see below), whose sum is σ = 1312605224. Its totient is φ = 1289882880.

The previous prime is 1301224297. The next prime is 1301224361. The reversal of 1301224321 is 1234221031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9828225 + 1291396096 = 3135^2 + 35936^2 .

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 1301224321 - 2¹⁵ = 1301191553 is a prime.

It is a super-2 number, since 2×1301224321² = 3386369467123822082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301224361) 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, 58411 + ... + 77551.

It is an arithmetic number, because the mean of its divisors is an integer number (164075653).

Almost surely, 2^1301224321 is an apocalyptic number.

It is an amenable number.

1301224321 is a deficient number, since it is larger than the sum of its proper divisors (11380903).

1301224321 is a wasteful number, since it uses less digits than its factorization.

1301224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19731.

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

The square root of 1301224321 is about 36072.4870365213. The cubic root of 1301224321 is about 1091.7353948481.

Adding to 1301224321 its reverse (1234221031), we get a palindrome (2535445352).

The spelling of 1301224321 in words is "one billion, three hundred one million, two hundred twenty-four thousand, three hundred twenty-one".