2103031212 has 24 divisors (see below), whose sum is σ = 4907814912. Its totient is φ = 700904400.

The previous prime is 2103031201. The next prime is 2103031213. The reversal of 2103031212 is 2121303012.

It is a junction number, because it is equal to n+sod(n) for n = 2103031191 and 2103031200.

It is not an unprimeable number, because it can be changed into a prime (2103031213) 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 7 ways as a sum of consecutive naturals, for example, 145137 + ... + 158967.

It is an arithmetic number, because the mean of its divisors is an integer number (204492288).

Almost surely, 2^2103031212 is an apocalyptic number.

It is an amenable number.

2103031212 is an abundant number, since it is smaller than the sum of its proper divisors (2804783700).

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

2103031212 is a wasteful number, since it uses less digits than its factorization.

2103031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26509 (or 26507 counting only the distinct ones).

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

The square root of 2103031212 is about 45858.8182577790. The cubic root of 2103031212 is about 1281.1950127280.

Adding to 2103031212 its reverse (2121303012), we get a palindrome (4224334224).

The spelling of 2103031212 in words is "two billion, one hundred three million, thirty-one thousand, two hundred twelve".