1213310010120 has 128 divisors (see below), whose sum is σ = 3928979779200. Its totient is φ = 297971011584.

The previous prime is 1213310010113. The next prime is 1213310010131. The reversal of 1213310010120 is 210100133121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1213310010120.

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 31 ways as a sum of consecutive naturals, for example, 222630 + ... + 1573589.

It is an arithmetic number, because the mean of its divisors is an integer number (30695154525).

Almost surely, 2^{1213310010120} is an apocalyptic number.

1213310010120 is a gapful number since it is divisible by the number (10) 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 1213310010120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964489889600).

1213310010120 is an abundant number, since it is smaller than the sum of its proper divisors (2715669769080).

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

1213310010120 is a wasteful number, since it uses less digits than its factorization.

1213310010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796679 (or 1796675 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1213310010120 its reverse (210100133121), we get a palindrome (1423410143241).

The spelling of 1213310010120 in words is "one trillion, two hundred thirteen billion, three hundred ten million, ten thousand, one hundred twenty".