12020131133444 has 144 divisors (see below), whose sum is σ = 25450702252416. Its totient is φ = 4859548992000.

The previous prime is 12020131133411. The next prime is 12020131133519. The reversal of 12020131133444 is 44433113102021.

12020131133444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12020131133444² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1128539519 + ... + 1128550169.

It is an arithmetic number, because the mean of its divisors is an integer number (176740987864).

Almost surely, 2^{12020131133444} is an apocalyptic number.

12020131133444 is a gapful number since it is divisible by the number (14) 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 12020131133444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12725351126208).

12020131133444 is an abundant number, since it is smaller than the sum of its proper divisors (13430571118972).

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

12020131133444 is a wasteful number, since it uses less digits than its factorization.

12020131133444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11066 (or 10901 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 12020131133444 its reverse (44433113102021), we get a palindrome (56453244235465).

The spelling of 12020131133444 in words is "twelve trillion, twenty billion, one hundred thirty-one million, one hundred thirty-three thousand, four hundred forty-four".