1361211334145 has 8 divisors (see below), whose sum is σ = 1759103878056. Its totient is φ = 1005202215936.

The previous prime is 1361211334121. The next prime is 1361211334151. The reversal of 1361211334145 is 5414331121631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48722615824 + 1312488718321 = 220732^2 + 1145639^2 .

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 1361211334145 - 2²⁴ = 1361194556929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10470856352 + ... + 10470856481.

It is an arithmetic number, because the mean of its divisors is an integer number (219887984757).

Almost surely, 2^{1361211334145} is an apocalyptic number.

It is an amenable number.

1361211334145 is a deficient number, since it is larger than the sum of its proper divisors (397892543911).

1361211334145 is a wasteful number, since it uses less digits than its factorization.

1361211334145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20941712851.

The product of its digits is 25920, while the sum is 35.

Adding to 1361211334145 its reverse (5414331121631), we get a palindrome (6775542455776).

The spelling of 1361211334145 in words is "one trillion, three hundred sixty-one billion, two hundred eleven million, three hundred thirty-four thousand, one hundred forty-five".