2101321103000 has 128 divisors (see below), whose sum is σ = 5635458990720. Its totient is φ = 718411161600.

The previous prime is 2101321102999. The next prime is 2101321103003. The reversal of 2101321103000 is 3011231012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101321103003) 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, 2045804 + ... + 2896196.

It is an arithmetic number, because the mean of its divisors is an integer number (44027023365).

Almost surely, 2^{2101321103000} is an apocalyptic number.

2101321103000 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 2101321103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2817729495360).

2101321103000 is an abundant number, since it is smaller than the sum of its proper divisors (3534137887720).

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

2101321103000 is a wasteful number, since it uses less digits than its factorization.

2101321103000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850774 (or 850760 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 2101321103000 its reverse (3011231012), we get a palindrome (2104332334012).

The spelling of 2101321103000 in words is "two trillion, one hundred one billion, three hundred twenty-one million, one hundred three thousand".