1311310220412 has 24 divisors (see below), whose sum is σ = 3192755319936. Its totient is φ = 418098910768.

The previous prime is 1311310220401. The next prime is 1311310220431. The reversal of 1311310220412 is 2140220131131.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2375561718 + ... + 2375562269.

It is an arithmetic number, because the mean of its divisors is an integer number (133031471664).

Almost surely, 2^{1311310220412} is an apocalyptic number.

1311310220412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311310220412 is an abundant number, since it is smaller than the sum of its proper divisors (1881445099524).

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

1311310220412 is a wasteful number, since it uses less digits than its factorization.

1311310220412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751124017 (or 4751124015 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1311310220412 its reverse (2140220131131), we get a palindrome (3451530351543).

The spelling of 1311310220412 in words is "one trillion, three hundred eleven billion, three hundred ten million, two hundred twenty thousand, four hundred twelve".