1312220213344 has 12 divisors (see below), whose sum is σ = 2583433545084. Its totient is φ = 656110106656.

The previous prime is 1312220213341. The next prime is 1312220213357. The reversal of 1312220213344 is 4433120222131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312220213341) 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 as a sum of consecutive naturals, namely, 20503440802 + ... + 20503440865.

It is an arithmetic number, because the mean of its divisors is an integer number (215286128757).

Almost surely, 2^{1312220213344} is an apocalyptic number.

It is an amenable number.

1312220213344 is a deficient number, since it is larger than the sum of its proper divisors (1271213331740).

1312220213344 is an equidigital number, since it uses as much as digits as its factorization.

1312220213344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41006881677 (or 41006881669 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1312220213344 its reverse (4433120222131), we get a palindrome (5745340435475).

The spelling of 1312220213344 in words is "one trillion, three hundred twelve billion, two hundred twenty million, two hundred thirteen thousand, three hundred forty-four".