12120930321920 has 480 divisors, whose sum is σ = 34409343786048. Its totient is φ = 4011171840000.

The previous prime is 12120930321847. The next prime is 12120930321953. The reversal of 12120930321920 is 2912303902121.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 47 ways as a sum of consecutive naturals, for example, 9316625270 + ... + 9316626570.

Almost surely, 2^{12120930321920} is an apocalyptic number.

12120930321920 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 12120930321920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17204671893024).

12120930321920 is an abundant number, since it is smaller than the sum of its proper divisors (22288413464128).

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

12120930321920 is an equidigital number, since it uses as much as digits as its factorization.

12120930321920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 12120930321920 in words is "twelve trillion, one hundred twenty billion, nine hundred thirty million, three hundred twenty-one thousand, nine hundred twenty".