1312120212131 has 8 divisors (see below), whose sum is σ = 1315431961728. Its totient is φ = 1308812472000.

The previous prime is 1312120212119. The next prime is 1312120212191.

1312120212131 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1312120212131 - 2¹⁰ = 1312120211107 is a prime.

It is a super-2 number, since 2×1312120212131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312120212191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346490 + ... + 1656591.

It is an arithmetic number, because the mean of its divisors is an integer number (164428995216).

Almost surely, 2^{1312120212131} is an apocalyptic number.

1312120212131 is a deficient number, since it is larger than the sum of its proper divisors (3311749597).

1312120212131 is an equidigital number, since it uses as much as digits as its factorization.

1312120212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004733.

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 1312120 and 212131, that added together give a palindrome (1524251).

The spelling of 1312120212131 in words is "one trillion, three hundred twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred thirty-one".