1312120223133 has 16 divisors (see below), whose sum is σ = 1776893723136. Its totient is φ = 861085093680.

The previous prime is 1312120223093. The next prime is 1312120223177. The reversal of 1312120223133 is 3313220212131.

It is not a de Polignac number, because 1312120223133 - 2⁶ = 1312120223069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312120223233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4653235 + ... + 4927152.

It is an arithmetic number, because the mean of its divisors is an integer number (111055857696).

Almost surely, 2^{1312120223133} is an apocalyptic number.

It is an amenable number.

1312120223133 is a deficient number, since it is larger than the sum of its proper divisors (464773500003).

1312120223133 is an equidigital number, since it uses as much as digits as its factorization.

1312120223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581104.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1312120223133 its reverse (3313220212131), we get a palindrome (4625340435264).

The spelling of 1312120223133 in words is "one trillion, three hundred twelve billion, one hundred twenty million, two hundred twenty-three thousand, one hundred thirty-three".