1320100101012 has 144 divisors (see below), whose sum is σ = 3914866372032. Its totient is φ = 342356958720.

The previous prime is 1320100100993. The next prime is 1320100101029. The reversal of 1320100101012 is 2101010010231.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4067328 + ... + 4379880.

It is an arithmetic number, because the mean of its divisors is an integer number (27186572028).

Almost surely, 2^{1320100101012} is an apocalyptic number.

1320100101012 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 1320100101012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957433186016).

1320100101012 is an abundant number, since it is smaller than the sum of its proper divisors (2594766271020).

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

1320100101012 is a wasteful number, since it uses less digits than its factorization.

1320100101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313238 (or 313229 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1320100101012 its reverse (2101010010231), we get a palindrome (3421110111243).

The spelling of 1320100101012 in words is "one trillion, three hundred twenty billion, one hundred million, one hundred one thousand, twelve".