12120302311000 has 128 divisors (see below), whose sum is σ = 31596375283200. Its totient is φ = 4320871564800.

The previous prime is 12120302310947. The next prime is 12120302311001. The reversal of 12120302311000 is 11320302121.

It is a super-2 number, since 2×12120302311000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120302311001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15697672 + ... + 16451671.

It is an arithmetic number, because the mean of its divisors is an integer number (246846681900).

Almost surely, 2^{12120302311000} is an apocalyptic number.

12120302311000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120302311000 is an abundant number, since it is smaller than the sum of its proper divisors (19476072972200).

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

12120302311000 is a wasteful number, since it uses less digits than its factorization.

12120302311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32149406 (or 32149392 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12120302311000 its reverse (11320302121), we get a palindrome (12131622613121).

The spelling of 12120302311000 in words is "twelve trillion, one hundred twenty billion, three hundred two million, three hundred eleven thousand".