2231313213 has 16 divisors (see below), whose sum is σ = 3012429056. Its totient is φ = 1468938240.

The previous prime is 2231313187. The next prime is 2231313239. The reversal of 2231313213 is 3123131322.

It is an interprime number because it is at equal distance from previous prime (2231313187) and next prime (2231313239).

It is not a de Polignac number, because 2231313213 - 2⁵ = 2231313181 is a prime.

It is a super-3 number, since 3×2231313213³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231313213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231313613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126453 + ... + 143013.

It is an arithmetic number, because the mean of its divisors is an integer number (188276816).

Almost surely, 2^2231313213 is an apocalyptic number.

It is an amenable number.

2231313213 is a deficient number, since it is larger than the sum of its proper divisors (781115843).

2231313213 is a wasteful number, since it uses less digits than its factorization.

2231313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17124.

The product of its digits is 648, while the sum is 21.

The square root of 2231313213 is about 47236.7781818362. The cubic root of 2231313213 is about 1306.7329605564.

Adding to 2231313213 its reverse (3123131322), we get a palindrome (5354444535).

The spelling of 2231313213 in words is "two billion, two hundred thirty-one million, three hundred thirteen thousand, two hundred thirteen".