1313122136645 has 8 divisors (see below), whose sum is σ = 1718996251680. Its totient is φ = 954997917520.

The previous prime is 1313122136629. The next prime is 1313122136701. The reversal of 1313122136645 is 5466312213131.

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

It is not a de Polignac number, because 1313122136645 - 2⁴ = 1313122136629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313122136599 and 1313122136608.

It is a congruent number.

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, 11937473915 + ... + 11937474024.

It is an arithmetic number, because the mean of its divisors is an integer number (214874531460).

Almost surely, 2^{1313122136645} is an apocalyptic number.

It is an amenable number.

1313122136645 is a deficient number, since it is larger than the sum of its proper divisors (405874115035).

1313122136645 is a wasteful number, since it uses less digits than its factorization.

1313122136645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23874947955.

The product of its digits is 77760, while the sum is 38.

Adding to 1313122136645 its reverse (5466312213131), we get a palindrome (6779434349776).

The spelling of 1313122136645 in words is "one trillion, three hundred thirteen billion, one hundred twenty-two million, one hundred thirty-six thousand, six hundred forty-five".