1305135015242 has 16 divisors (see below), whose sum is σ = 2026057444200. Its totient is φ = 629801376960.

The previous prime is 1305135015211. The next prime is 1305135015253. The reversal of 1305135015242 is 2425105315031.

It can be written as a sum of positive squares in 4 ways, for example, as 1125358167241 + 179776848001 = 1060829^2 + 424001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1305135015199 and 1305135015208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4571009 + ... + 4848132.

Almost surely, 2^{1305135015242} is an apocalyptic number.

1305135015242 is a deficient number, since it is larger than the sum of its proper divisors (720922428958).

1305135015242 is a wasteful number, since it uses less digits than its factorization.

1305135015242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9421561.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 1305135015242 in words is "one trillion, three hundred five billion, one hundred thirty-five million, fifteen thousand, two hundred forty-two".