10001200300120 has 128 divisors (see below), whose sum is σ = 23717670912000. Its totient is φ = 3790764426240.

The previous prime is 10001200300099. The next prime is 10001200300123. The reversal of 10001200300120 is 2100300210001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10001200300097 and 10001200300106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001200300123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10927161 + ... + 11806999.

It is an arithmetic number, because the mean of its divisors is an integer number (185294304000).

Almost surely, 2^{10001200300120} is an apocalyptic number.

10001200300120 is a gapful number since it is divisible by the number (10) 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 10001200300120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11858835456000).

10001200300120 is an abundant number, since it is smaller than the sum of its proper divisors (13716470611880).

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

10001200300120 is a wasteful number, since it uses less digits than its factorization.

10001200300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880073 (or 880069 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10001200300120 its reverse (2100300210001), we get a palindrome (12101500510121).

The spelling of 10001200300120 in words is "ten trillion, one billion, two hundred million, three hundred thousand, one hundred twenty".