1305423142611 has 8 divisors (see below), whose sum is σ = 1989216217344. Its totient is φ = 745956081480.

The previous prime is 1305423142603. The next prime is 1305423142631. The reversal of 1305423142611 is 1162413245031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1305423142611 - 2³ = 1305423142603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1305423142601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31081503375 + ... + 31081503416.

It is an arithmetic number, because the mean of its divisors is an integer number (248652027168).

Almost surely, 2^{1305423142611} is an apocalyptic number.

1305423142611 is a deficient number, since it is larger than the sum of its proper divisors (683793074733).

1305423142611 is an equidigital number, since it uses as much as digits as its factorization.

1305423142611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62163006801.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 1305423142611 its reverse (1162413245031), we get a palindrome (2467836387642).

The spelling of 1305423142611 in words is "one trillion, three hundred five billion, four hundred twenty-three million, one hundred forty-two thousand, six hundred eleven".