1313112213131 has 4 divisors (see below), whose sum is σ = 1313120061000. Its totient is φ = 1313104365264.

The previous prime is 1313112213067. The next prime is 1313112213137. The reversal of 1313112213131 is 1313122113131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313112213131 - 2⁶ = 1313112213067 is a prime.

It is a super-2 number, since 2×1313112213131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313112213097 and 1313112213106.

It is not an unprimeable number, because it can be changed into a prime (1313112213137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3667361 + ... + 4009458.

It is an arithmetic number, because the mean of its divisors is an integer number (328280015250).

Almost surely, 2^{1313112213131} is an apocalyptic number.

1313112213131 is a deficient number, since it is larger than the sum of its proper divisors (7847869).

1313112213131 is an equidigital number, since it uses as much as digits as its factorization.

1313112213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847868.

The product of its digits is 324, while the sum is 23.

Adding to 1313112213131 its reverse (1313122113131), we get a palindrome (2626234326262).

The spelling of 1313112213131 in words is "one trillion, three hundred thirteen billion, one hundred twelve million, two hundred thirteen thousand, one hundred thirty-one".