2231234213 has 4 divisors (see below), whose sum is σ = 2402867628. Its totient is φ = 2059600800.

The previous prime is 2231234191. The next prime is 2231234237. The reversal of 2231234213 is 3124321322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 241895809 + 1989338404 = 15553^2 + 44602^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231234213 - 2⁸ = 2231233957 is a prime.

It is a super-3 number, since 3×2231234213³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231254213) 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 3 ways as a sum of consecutive naturals, for example, 85816688 + ... + 85816713.

It is an arithmetic number, because the mean of its divisors is an integer number (600716907).

Almost surely, 2^2231234213 is an apocalyptic number.

It is an amenable number.

2231234213 is a deficient number, since it is larger than the sum of its proper divisors (171633415).

2231234213 is a wasteful number, since it uses less digits than its factorization.

2231234213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171633414.

The product of its digits is 1728, while the sum is 23.

The square root of 2231234213 is about 47235.9419616038. The cubic root of 2231234213 is about 1306.7175386781.

Adding to 2231234213 its reverse (3124321322), we get a palindrome (5355555535).

The spelling of 2231234213 in words is "two billion, two hundred thirty-one million, two hundred thirty-four thousand, two hundred thirteen".