2131030212 has 12 divisors (see below), whose sum is σ = 4972403856. Its totient is φ = 710343400.

The previous prime is 2131030183. The next prime is 2131030219. The reversal of 2131030212 is 2120301312.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2131030191 and 2131030200.

It is not an unprimeable number, because it can be changed into a prime (2131030219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88792914 + ... + 88792937.

It is an arithmetic number, because the mean of its divisors is an integer number (414366988).

Almost surely, 2^2131030212 is an apocalyptic number.

It is an amenable number.

2131030212 is an abundant number, since it is smaller than the sum of its proper divisors (2841373644).

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

2131030212 is a wasteful number, since it uses less digits than its factorization.

2131030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177585858 (or 177585856 counting only the distinct ones).

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

The square root of 2131030212 is about 46163.0827826739. The cubic root of 2131030212 is about 1286.8557544984.

Adding to 2131030212 its reverse (2120301312), we get a palindrome (4251331524).

The spelling of 2131030212 in words is "two billion, one hundred thirty-one million, thirty thousand, two hundred twelve".