2003311212 has 96 divisors (see below), whose sum is σ = 5700119040. Its totient is φ = 534543360.

The previous prime is 2003311207. The next prime is 2003311223. The reversal of 2003311212 is 2121133002.

It is a junction number, because it is equal to n+sod(n) for n = 2003311191 and 2003311200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181714 + ... + 192422.

It is an arithmetic number, because the mean of its divisors is an integer number (59376240).

Almost surely, 2^2003311212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003311212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2850059520).

2003311212 is an abundant number, since it is smaller than the sum of its proper divisors (3696807828).

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

2003311212 is a wasteful number, since it uses less digits than its factorization.

2003311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871 (or 10869 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2003311212 is about 44758.3647154362. The cubic root of 2003311212 is about 1260.6159774770.

Adding to 2003311212 its reverse (2121133002), we get a palindrome (4124444214).

The spelling of 2003311212 in words is "two billion, three million, three hundred eleven thousand, two hundred twelve".