1305630142205 has 16 divisors (see below), whose sum is σ = 1596379238784. Its totient is φ = 1024756923840.

The previous prime is 1305630142181. The next prime is 1305630142231. The reversal of 1305630142205 is 5022410365031.

It is a happy number.

It is not a de Polignac number, because 1305630142205 - 2²⁴ = 1305613364989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8117072 + ... + 8276358.

It is an arithmetic number, because the mean of its divisors is an integer number (99773702424).

Almost surely, 2^{1305630142205} is an apocalyptic number.

It is an amenable number.

1305630142205 is a deficient number, since it is larger than the sum of its proper divisors (290749096579).

1305630142205 is a wasteful number, since it uses less digits than its factorization.

1305630142205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190276.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 1305630142205 in words is "one trillion, three hundred five billion, six hundred thirty million, one hundred forty-two thousand, two hundred five".