2012031100 has 36 divisors (see below), whose sum is σ = 4409358408. Its totient is φ = 796840000.

The previous prime is 2012031097. The next prime is 2012031101. The reversal of 2012031100 is 11302102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012031101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89506 + ... + 109705.

It is an arithmetic number, because the mean of its divisors is an integer number (122482178).

Almost surely, 2^2012031100 is an apocalyptic number.

2012031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012031100 is an abundant number, since it is smaller than the sum of its proper divisors (2397327308).

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

2012031100 is a wasteful number, since it uses less digits than its factorization.

2012031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199326 (or 199319 counting only the distinct ones).

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

The square root of 2012031100 is about 44855.6696527875. The cubic root of 2012031100 is about 1262.4423736073.

Adding to 2012031100 its reverse (11302102), we get a palindrome (2023333202).

The spelling of 2012031100 in words is "two billion, twelve million, thirty-one thousand, one hundred".