1312323031222 has 48 divisors (see below), whose sum is σ = 2395447344000. Its totient is φ = 536928653184.

The previous prime is 1312323031207. The next prime is 1312323031241. The reversal of 1312323031222 is 2221303232131.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2341222 + ... + 2847097.

It is an arithmetic number, because the mean of its divisors is an integer number (49905153000).

Almost surely, 2^{1312323031222} is an apocalyptic number.

1312323031222 is a deficient number, since it is larger than the sum of its proper divisors (1083124312778).

1312323031222 is a wasteful number, since it uses less digits than its factorization.

1312323031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188453 (or 5188446 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1312323031222 its reverse (2221303232131), we get a palindrome (3533626263353).

The spelling of 1312323031222 in words is "one trillion, three hundred twelve billion, three hundred twenty-three million, thirty-one thousand, two hundred twenty-two".