1312120322031 has 8 divisors (see below), whose sum is σ = 1805929045504. Its totient is φ = 846529239960.

The previous prime is 1312120322021. The next prime is 1312120322047. The reversal of 1312120322031 is 1302230212131.

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

It is not a de Polignac number, because 1312120322031 - 2⁷ = 1312120321903 is a prime.

It is a super-2 number, since 2×1312120322031² (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 = 1312120321989 and 1312120322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312120322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7054410241 + ... + 7054410426.

It is an arithmetic number, because the mean of its divisors is an integer number (225741130688).

Almost surely, 2^{1312120322031} is an apocalyptic number.

1312120322031 is a deficient number, since it is larger than the sum of its proper divisors (493808723473).

1312120322031 is a wasteful number, since it uses less digits than its factorization.

1312120322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14108820701.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312120322031 its reverse (1302230212131), we get a palindrome (2614350534162).

The spelling of 1312120322031 in words is "one trillion, three hundred twelve billion, one hundred twenty million, three hundred twenty-two thousand, thirty-one".