12100331323120 has 40 divisors (see below), whose sum is σ = 28259428530816. Its totient is φ = 4818427891968.

The previous prime is 12100331323051. The next prime is 12100331323127. The reversal of 12100331323120 is 2132313300121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12100331323091 and 12100331323100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100331323127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339117007 + ... + 339152686.

Almost surely, 2^{12100331323120} is an apocalyptic number.

12100331323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100331323120 is an abundant number, since it is smaller than the sum of its proper divisors (16159097207696).

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

12100331323120 is a wasteful number, since it uses less digits than its factorization.

12100331323120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678269929 (or 678269923 counting only the distinct ones).

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

Adding to 12100331323120 its reverse (2132313300121), we get a palindrome (14232644623241).

The spelling of 12100331323120 in words is "twelve trillion, one hundred billion, three hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty".