1313211132012 has 96 divisors (see below), whose sum is σ = 3315379748800. Its totient is φ = 402166259712.

The previous prime is 1313211131957. The next prime is 1313211132017. The reversal of 1313211132012 is 2102311123131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313211132012.

It is not an unprimeable number, because it can be changed into a prime (1313211132017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186082788 + ... + 186089844.

Almost surely, 2^{1313211132012} is an apocalyptic number.

1313211132012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313211132012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657689874400).

1313211132012 is an abundant number, since it is smaller than the sum of its proper divisors (2002168616788).

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

1313211132012 is a wasteful number, since it uses less digits than its factorization.

1313211132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515 (or 12513 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1313211132012 its reverse (2102311123131), we get a palindrome (3415522255143).

The spelling of 1313211132012 in words is "one trillion, three hundred thirteen billion, two hundred eleven million, one hundred thirty-two thousand, twelve".