1312120331132 has 36 divisors (see below), whose sum is σ = 2486859532416. Its totient is φ = 605489189760.

The previous prime is 1312120331117. The next prime is 1312120331233. The reversal of 1312120331132 is 2311330212131.

It is a junction number, because it is equal to n+sod(n) for n = 1312120331098 and 1312120331107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3810533 + ... + 4140579.

It is an arithmetic number, because the mean of its divisors is an integer number (69079431456).

Almost surely, 2^{1312120331132} is an apocalyptic number.

It is an amenable number.

1312120331132 is a deficient number, since it is larger than the sum of its proper divisors (1174739201284).

1312120331132 is a wasteful number, since it uses less digits than its factorization.

1312120331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335958 (or 335943 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1312120331132 its reverse (2311330212131), we get a palindrome (3623450543263).

The spelling of 1312120331132 in words is "one trillion, three hundred twelve billion, one hundred twenty million, three hundred thirty-one thousand, one hundred thirty-two".