1312122331303 has 16 divisors (see below), whose sum is σ = 1555461842176. Its totient is φ = 1083472770240.

The previous prime is 1312122331189. The next prime is 1312122331319. The reversal of 1312122331303 is 3031332212131.

It is not a de Polignac number, because 1312122331303 - 2⁹ = 1312122330791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312122331363) 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 15 ways as a sum of consecutive naturals, for example, 29835633 + ... + 29879578.

It is an arithmetic number, because the mean of its divisors is an integer number (97216365136).

Almost surely, 2^{1312122331303} is an apocalyptic number.

1312122331303 is a deficient number, since it is larger than the sum of its proper divisors (243339510873).

1312122331303 is an equidigital number, since it uses as much as digits as its factorization.

1312122331303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59715334.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1312122331303 its reverse (3031332212131), we get a palindrome (4343454543434).

The spelling of 1312122331303 in words is "one trillion, three hundred twelve billion, one hundred twenty-two million, three hundred thirty-one thousand, three hundred three".