1305434340121 has 8 divisors (see below), whose sum is σ = 1319288619584. Its totient is φ = 1291602756240.

The previous prime is 1305434340113. The next prime is 1305434340139. The reversal of 1305434340121 is 1210434345031.

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 1305434340121 - 2³ = 1305434340113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305434340421) 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, 5558235 + ... + 5788336.

It is an arithmetic number, because the mean of its divisors is an integer number (164911077448).

Almost surely, 2^{1305434340121} is an apocalyptic number.

It is an amenable number.

1305434340121 is a deficient number, since it is larger than the sum of its proper divisors (13854279463).

1305434340121 is a wasteful number, since it uses less digits than its factorization.

1305434340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347791.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1305434340121 its reverse (1210434345031), we get a palindrome (2515868685152).

The spelling of 1305434340121 in words is "one trillion, three hundred five billion, four hundred thirty-four million, three hundred forty thousand, one hundred twenty-one".