2003131212 has 24 divisors (see below), whose sum is σ = 4677750000. Its totient is φ = 667170816.

The previous prime is 2003131201. The next prime is 2003131217. The reversal of 2003131212 is 2121313002.

It is a junction number, because it is equal to n+sod(n) for n = 2003131191 and 2003131200.

It is not an unprimeable number, because it can be changed into a prime (2003131217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51837 + ... + 81812.

It is an arithmetic number, because the mean of its divisors is an integer number (194906250).

Almost surely, 2^2003131212 is an apocalyptic number.

It is an amenable number.

2003131212 is an abundant number, since it is smaller than the sum of its proper divisors (2674618788).

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

2003131212 is a wasteful number, since it uses less digits than its factorization.

2003131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134905 (or 134903 counting only the distinct ones).

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

The square root of 2003131212 is about 44756.3538729419. The cubic root of 2003131212 is about 1260.5782203758.

Adding to 2003131212 its reverse (2121313002), we get a palindrome (4124444214).

The spelling of 2003131212 in words is "two billion, three million, one hundred thirty-one thousand, two hundred twelve".