1305134011 has 8 divisors (see below), whose sum is σ = 1365789600. Its totient is φ = 1244804352.

The previous prime is 1305133939. The next prime is 1305134021. The reversal of 1305134011 is 1104315031.

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 1305134011 - 2⁹ = 1305133499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1305134011.

It is not an unprimeable number, because it can be changed into a prime (1305134021) 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, 73270 + ... + 89323.

It is an arithmetic number, because the mean of its divisors is an integer number (170723700).

Almost surely, 2^1305134011 is an apocalyptic number.

1305134011 is a deficient number, since it is larger than the sum of its proper divisors (60655589).

1305134011 is a wasteful number, since it uses less digits than its factorization.

1305134011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162965.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1305134011 is about 36126.6385233943. The cubic root of 1305134011 is about 1092.8277197411.

Adding to 1305134011 its reverse (1104315031), we get a palindrome (2409449042).

The spelling of 1305134011 in words is "one billion, three hundred five million, one hundred thirty-four thousand, eleven".