1313121112312 has 8 divisors (see below), whose sum is σ = 2462102085600. Its totient is φ = 656560556152.

The previous prime is 1313121112283. The next prime is 1313121112313. The reversal of 1313121112312 is 2132111213131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313121112313) 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 as a sum of consecutive naturals, namely, 82070069512 + ... + 82070069527.

It is an arithmetic number, because the mean of its divisors is an integer number (307762760700).

Almost surely, 2^{1313121112312} is an apocalyptic number.

It is an amenable number.

1313121112312 is a deficient number, since it is larger than the sum of its proper divisors (1148980973288).

1313121112312 is a wasteful number, since it uses less digits than its factorization.

1313121112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164140139045 (or 164140139041 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

Adding to 1313121112312 its reverse (2132111213131), we get a palindrome (3445232325443).

The spelling of 1313121112312 in words is "one trillion, three hundred thirteen billion, one hundred twenty-one million, one hundred twelve thousand, three hundred twelve".