1131210213 has 32 divisors (see below), whose sum is σ = 1813566720. Its totient is φ = 613578240.

The previous prime is 1131210193. The next prime is 1131210247. The reversal of 1131210213 is 3120121311.

It is a happy number.

It is not a de Polignac number, because 1131210213 - 2¹⁴ = 1131193829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1131210192 and 1131210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131215213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14103 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (56673960).

Almost surely, 2^1131210213 is an apocalyptic number.

It is an amenable number.

1131210213 is a deficient number, since it is larger than the sum of its proper divisors (682356507).

1131210213 is a wasteful number, since it uses less digits than its factorization.

1131210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35597.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131210213 is about 33633.4686435996. The cubic root of 1131210213 is about 1041.9521436337.

Adding to 1131210213 its reverse (3120121311), we get a palindrome (4251331524).

The spelling of 1131210213 in words is "one billion, one hundred thirty-one million, two hundred ten thousand, two hundred thirteen".