2012003100 has 216 divisors, whose sum is σ = 6712400240. Its totient is φ = 502640640.

The previous prime is 2012003089. The next prime is 2012003101. The reversal of 2012003100 is 13002102.

It is a happy number.

It is a super-2 number, since 2×2012003100² = 8096312948819220000, which contains 22 as substring.

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

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012003101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1658094 + ... + 1659306.

Almost surely, 2^2012003100 is an apocalyptic number.

2012003100 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 2012003100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3356200120).

2012003100 is an abundant number, since it is smaller than the sum of its proper divisors (4700397140).

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

2012003100 is a wasteful number, since it uses less digits than its factorization.

2012003100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1339 counting only the distinct ones).

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

The square root of 2012003100 is about 44855.3575395404. The cubic root of 2012003100 is about 1262.4365174105.

Adding to 2012003100 its reverse (13002102), we get a palindrome (2025005202).

The spelling of 2012003100 in words is "two billion, twelve million, three thousand, one hundred".