1312302311212 has 12 divisors (see below), whose sum is σ = 2309358817080. Its totient is φ = 652485506336.

The previous prime is 1312302311113. The next prime is 1312302311261. The reversal of 1312302311212 is 2121132032131.

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 3 ways as a sum of consecutive naturals, for example, 916411513 + ... + 916412944.

It is an arithmetic number, because the mean of its divisors is an integer number (192446568090).

Almost surely, 2^{1312302311212} is an apocalyptic number.

It is an amenable number.

1312302311212 is a deficient number, since it is larger than the sum of its proper divisors (997056505868).

1312302311212 is a wasteful number, since it uses less digits than its factorization.

1312302311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832824640 (or 1832824638 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1312302311212 its reverse (2121132032131), we get a palindrome (3433434343343).

It can be divided in two parts, 131230 and 2311212, that added together give a palindrome (2442442).

The spelling of 1312302311212 in words is "one trillion, three hundred twelve billion, three hundred two million, three hundred eleven thousand, two hundred twelve".