1305020341 has 4 divisors (see below), whose sum is σ = 1305174784. Its totient is φ = 1304865900.

The previous prime is 1305020323. The next prime is 1305020347. The reversal of 1305020341 is 1430205031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1430205031 = 19 ⋅75273949.

It is a cyclic number.

It is not a de Polignac number, because 1305020341 - 2¹¹ = 1305018293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305020347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63765 + ... + 81706.

It is an arithmetic number, because the mean of its divisors is an integer number (326293696).

Almost surely, 2^1305020341 is an apocalyptic number.

It is an amenable number.

1305020341 is a deficient number, since it is larger than the sum of its proper divisors (154443).

1305020341 is an equidigital number, since it uses as much as digits as its factorization.

1305020341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154442.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1305020341 is about 36125.0652732974. The cubic root of 1305020341 is about 1092.7959923904.

Adding to 1305020341 its reverse (1430205031), we get a palindrome (2735225372).

The spelling of 1305020341 in words is "one billion, three hundred five million, twenty thousand, three hundred forty-one".