1213310323120 has 160 divisors (see below), whose sum is σ = 3239167822848. Its totient is φ = 414031309824.

The previous prime is 1213310323097. The next prime is 1213310323139. The reversal of 1213310323120 is 213230133121.

It is a junction number, because it is equal to n+sod(n) for n = 1213310323091 and 1213310323100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121241157 + ... + 121251163.

Almost surely, 2^{1213310323120} is an apocalyptic number.

1213310323120 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 1213310323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619583911424).

1213310323120 is an abundant number, since it is smaller than the sum of its proper divisors (2025857499728).

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

1213310323120 is a wasteful number, since it uses less digits than its factorization.

1213310323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027 (or 11021 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1213310323120 its reverse (213230133121), we get a palindrome (1426540456241).

The spelling of 1213310323120 in words is "one trillion, two hundred thirteen billion, three hundred ten million, three hundred twenty-three thousand, one hundred twenty".