1312220303012 has 12 divisors (see below), whose sum is σ = 2296404228300. Its totient is φ = 656104809216.

The previous prime is 1312220303011. The next prime is 1312220303039. The reversal of 1312220303012 is 2103030222131.

It can be written as a sum of positive squares in 2 ways, for example, as 1271603543716 + 40616759296 = 1127654^2 + 201536^2 .

It is not an unprimeable number, because it can be changed into a prime (1312220303011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754853 + ... + 1787244.

It is an arithmetic number, because the mean of its divisors is an integer number (191367019025).

Almost surely, 2^{1312220303012} is an apocalyptic number.

It is an amenable number.

1312220303012 is a deficient number, since it is larger than the sum of its proper divisors (984183925288).

1312220303012 is a wasteful number, since it uses less digits than its factorization.

1312220303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671150 (or 2671148 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1312220303012 its reverse (2103030222131), we get a palindrome (3415250525143).

The spelling of 1312220303012 in words is "one trillion, three hundred twelve billion, two hundred twenty million, three hundred three thousand, twelve".