1312203144312 has 64 divisors (see below), whose sum is σ = 3646629369600. Its totient is φ = 437206572000.

The previous prime is 1312203144311. The next prime is 1312203144331. The reversal of 1312203144312 is 2134413022131.

1312203144312 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 203 + 1 + 443 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312203144311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863188 + ... + 1835619.

It is an arithmetic number, because the mean of its divisors is an integer number (56978583900).

Almost surely, 2^{1312203144312} is an apocalyptic number.

1312203144312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312203144312 is an abundant number, since it is smaller than the sum of its proper divisors (2334426225288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312203144312 is a wasteful number, since it uses less digits than its factorization.

1312203144312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701073 (or 2701063 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1312203144312 its reverse (2134413022131), we get a palindrome (3446616166443).

The spelling of 1312203144312 in words is "one trillion, three hundred twelve billion, two hundred three million, one hundred forty-four thousand, three hundred twelve".