1312144223201 has 12 divisors (see below), whose sum is σ = 1515212578368. Its totient is φ = 1113100198272.

The previous prime is 1312144223189. The next prime is 1312144223227. The reversal of 1312144223201 is 1023224412131.

It is a happy number.

It is not a de Polignac number, because 1312144223201 - 2³⁰ = 1311070481377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312144223231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9895301 + ... + 10027026.

It is an arithmetic number, because the mean of its divisors is an integer number (126267714864).

Almost surely, 2^{1312144223201} is an apocalyptic number.

It is an amenable number.

1312144223201 is a deficient number, since it is larger than the sum of its proper divisors (203068355167).

1312144223201 is an frugal number, since it uses more digits than its factorization.

1312144223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19922528 (or 19922431 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1312144223201 its reverse (1023224412131), we get a palindrome (2335368635332).

The spelling of 1312144223201 in words is "one trillion, three hundred twelve billion, one hundred forty-four million, two hundred twenty-three thousand, two hundred one".