1306021241 has 16 divisors (see below), whose sum is σ = 1529007744. Its totient is φ = 1092196224.

The previous prime is 1306021229. The next prime is 1306021253. The reversal of 1306021241 is 1421206031.

It is an interprime number because it is at equal distance from previous prime (1306021229) and next prime (1306021253).

It is not a de Polignac number, because 1306021241 - 2¹⁰ = 1306020217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306021201) 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 15 ways as a sum of consecutive naturals, for example, 357275 + ... + 360911.

It is an arithmetic number, because the mean of its divisors is an integer number (95562984).

Almost surely, 2^1306021241 is an apocalyptic number.

It is an amenable number.

1306021241 is a deficient number, since it is larger than the sum of its proper divisors (222986503).

1306021241 is a wasteful number, since it uses less digits than its factorization.

1306021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1306021241 is about 36138.9158802530. The cubic root of 1306021241 is about 1093.0752983814.

Adding to 1306021241 its reverse (1421206031), we get a palindrome (2727227272).

The spelling of 1306021241 in words is "one billion, three hundred six million, twenty-one thousand, two hundred forty-one".