1312210113012 has 120 divisors (see below), whose sum is σ = 3468816023904. Its totient is φ = 432517071168.

The previous prime is 1312210112971. The next prime is 1312210113061. The reversal of 1312210113012 is 2103110122131.

1312210113012 is a `hidden beast` number, since 1 + 312 + 210 + 1 + 130 + 12 = 666.

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

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 18928798 + ... + 18997994.

Almost surely, 2^{1312210113012} is an apocalyptic number.

1312210113012 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 1312210113012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734408011952).

1312210113012 is an abundant number, since it is smaller than the sum of its proper divisors (2156605910892).

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

1312210113012 is a wasteful number, since it uses less digits than its factorization.

1312210113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69867 (or 69856 counting only the distinct ones).

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

Adding to 1312210113012 its reverse (2103110122131), we get a palindrome (3415320235143).

The spelling of 1312210113012 in words is "one trillion, three hundred twelve billion, two hundred ten million, one hundred thirteen thousand, twelve".