2103321000 has 128 divisors (see below), whose sum is σ = 7159052160. Its totient is φ = 509888000.

The previous prime is 2103320987. The next prime is 2103321001. The reversal of 2103321000 is 1233012.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2103321001) 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, 1132 + ... + 64868.

It is an arithmetic number, because the mean of its divisors is an integer number (55930095).

Almost surely, 2^2103321000 is an apocalyptic number.

2103321000 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 2103321000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3579526080).

2103321000 is an abundant number, since it is smaller than the sum of its proper divisors (5055731160).

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

2103321000 is a wasteful number, since it uses less digits than its factorization.

2103321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63772 (or 63758 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2103321000 is about 45861.9777157505. The cubic root of 2103321000 is about 1281.2538576128.

Adding to 2103321000 its reverse (1233012), we get a palindrome (2104554012).

The spelling of 2103321000 in words is "two billion, one hundred three million, three hundred twenty-one thousand".