1313111312242 has 16 divisors (see below), whose sum is σ = 1973712033792. Its totient is φ = 655207639840.

The previous prime is 1313111312081. The next prime is 1313111312263. The reversal of 1313111312242 is 2422131113131.

It is a super-2 number, since 2×1313111312242² (a number of 25 digits) contains 22 as substring.

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, 8071023 + ... + 8232109.

It is an arithmetic number, because the mean of its divisors is an integer number (123357002112).

Almost surely, 2^{1313111312242} is an apocalyptic number.

1313111312242 is a deficient number, since it is larger than the sum of its proper divisors (660600721550).

1313111312242 is a wasteful number, since it uses less digits than its factorization.

1313111312242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169433.

The product of its digits is 864, while the sum is 25.

Adding to 1313111312242 its reverse (2422131113131), we get a palindrome (3735242425373).

The spelling of 1313111312242 in words is "one trillion, three hundred thirteen billion, one hundred eleven million, three hundred twelve thousand, two hundred forty-two".