1312133133131 has 4 divisors (see below), whose sum is σ = 1336890362112. Its totient is φ = 1287375904152.

The previous prime is 1312133133097. The next prime is 1312133133209. The reversal of 1312133133131 is 1313313312131.

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 1312133133131 - 2³⁰ = 1311059391307 is a prime.

It is a super-2 number, since 2×1312133133131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312133133131.

It is not an unprimeable number, because it can be changed into a prime (1312133103131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12378614411 + ... + 12378614516.

It is an arithmetic number, because the mean of its divisors is an integer number (334222590528).

Almost surely, 2^{1312133133131} is an apocalyptic number.

1312133133131 is a deficient number, since it is larger than the sum of its proper divisors (24757228981).

1312133133131 is an equidigital number, since it uses as much as digits as its factorization.

1312133133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24757228980.

The product of its digits is 1458, while the sum is 26.

Adding to 1312133133131 its reverse (1313313312131), we get a palindrome (2625446445262).

The spelling of 1312133133131 in words is "one trillion, three hundred twelve billion, one hundred thirty-three million, one hundred thirty-three thousand, one hundred thirty-one".