1313021112012 has 24 divisors (see below), whose sum is σ = 3404128809200. Its totient is φ = 437673703968.

The previous prime is 1313021111981. The next prime is 1313021112041. The reversal of 1313021112012 is 2102111203131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6078801337 + ... + 6078801552.

Almost surely, 2^{1313021112012} is an apocalyptic number.

1313021112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313021112012 is an abundant number, since it is smaller than the sum of its proper divisors (2091107697188).

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

1313021112012 is a wasteful number, since it uses less digits than its factorization.

1313021112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12157602902 (or 12157602894 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1313021112012 its reverse (2102111203131), we get a palindrome (3415132315143).

The spelling of 1313021112012 in words is "one trillion, three hundred thirteen billion, twenty-one million, one hundred twelve thousand, twelve".