20012002310120 has 128 divisors (see below), whose sum is σ = 48563168976000. Its totient is φ = 7396962693120.

The previous prime is 20012002310009. The next prime is 20012002310141. The reversal of 20012002310120 is 2101320021002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20012002310095 and 20012002310104.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 152275559 + ... + 152406921.

It is an arithmetic number, because the mean of its divisors is an integer number (379399757625).

Almost surely, 2^{20012002310120} is an apocalyptic number.

20012002310120 is a gapful number since it is divisible by the number (20) 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 20012002310120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24281584488000).

20012002310120 is an abundant number, since it is smaller than the sum of its proper divisors (28551166665880).

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

20012002310120 is a wasteful number, since it uses less digits than its factorization.

20012002310120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136323 (or 136319 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20012002310120 its reverse (2101320021002), we get a palindrome (22113322331122).

The spelling of 20012002310120 in words is "twenty trillion, twelve billion, two million, three hundred ten thousand, one hundred twenty".