20123201131120 has 40 divisors (see below), whose sum is σ = 48399768243360. Its totient is φ = 7771719056640.

The previous prime is 20123201130997. The next prime is 20123201131123. The reversal of 20123201131120 is 2113110232102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123201131123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4336894476 + ... + 4336899115.

It is an arithmetic number, because the mean of its divisors is an integer number (1209994206084).

Almost surely, 2^{20123201131120} is an apocalyptic number.

20123201131120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123201131120 is an abundant number, since it is smaller than the sum of its proper divisors (28276567112240).

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

20123201131120 is a wasteful number, since it uses less digits than its factorization.

20123201131120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8673793633 (or 8673793627 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20123201131120 its reverse (2113110232102), we get a palindrome (22236311363222).

The spelling of 20123201131120 in words is "twenty trillion, one hundred twenty-three billion, two hundred one million, one hundred thirty-one thousand, one hundred twenty".