2101020003120 has 80 divisors (see below), whose sum is σ = 6672019650912. Its totient is φ = 546606827520.

The previous prime is 2101020003107. The next prime is 2101020003139. The reversal of 2101020003120 is 213000201012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2101020003096 and 2101020003105.

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, 106749307 + ... + 106768986.

Almost surely, 2^{2101020003120} is an apocalyptic number.

2101020003120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101020003120 is an abundant number, since it is smaller than the sum of its proper divisors (4570999647792).

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

2101020003120 is a wasteful number, since it uses less digits than its factorization.

2101020003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213518350 (or 213518344 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2101020003120 its reverse (213000201012), we get a palindrome (2314020204132).

The spelling of 2101020003120 in words is "two trillion, one hundred one billion, twenty million, three thousand, one hundred twenty".