2103020100 has 108 divisors (see below), whose sum is σ = 6610799104. Its totient is φ = 559189440.

The previous prime is 2103020089. The next prime is 2103020119. The reversal of 2103020100 is 10203012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 327117 + ... + 333483.

Almost surely, 2^2103020100 is an apocalyptic number.

2103020100 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 2103020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3305399552).

2103020100 is an abundant number, since it is smaller than the sum of its proper divisors (4507779004).

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

2103020100 is a wasteful number, since it uses less digits than its factorization.

2103020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754 (or 6744 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2103020100 is about 45858.6971031668. The cubic root of 2103020100 is about 1281.1927561972.

Adding to 2103020100 its reverse (10203012), we get a palindrome (2113223112).

The spelling of 2103020100 in words is "two billion, one hundred three million, twenty thousand, one hundred".