20003131102120 has 64 divisors (see below), whose sum is σ = 45145743632640. Its totient is φ = 7976632723200.

The previous prime is 20003131102027. The next prime is 20003131102133. The reversal of 20003131102120 is 2120113130002.

It is a junction number, because it is equal to n+sod(n) for n = 20003131102094 and 20003131102103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16353025 + ... + 17533615.

It is an arithmetic number, because the mean of its divisors is an integer number (705402244260).

Almost surely, 2^{20003131102120} is an apocalyptic number.

20003131102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003131102120 is an abundant number, since it is smaller than the sum of its proper divisors (25142612530520).

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

20003131102120 is a wasteful number, since it uses less digits than its factorization.

20003131102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181906 (or 1181902 counting only the distinct ones).

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

Adding to 20003131102120 its reverse (2120113130002), we get a palindrome (22123244232122).

The spelling of 20003131102120 in words is "twenty trillion, three billion, one hundred thirty-one million, one hundred two thousand, one hundred twenty".