2231020313 has 8 divisors (see below), whose sum is σ = 2362678632. Its totient is φ = 2099408896.

The previous prime is 2231020271. The next prime is 2231020333. The reversal of 2231020313 is 3130201322.

2231020313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 778800649 + 1452219664 = 27907^2 + 38108^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231020313 - 2⁶ = 2231020249 is a prime.

It is a super-3 number, since 3×2231020313³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 2231020291 and 2231020300.

It is not an unprimeable number, because it can be changed into a prime (2231020333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150281 + ... + 164457.

It is an arithmetic number, because the mean of its divisors is an integer number (295334829).

Almost surely, 2^2231020313 is an apocalyptic number.

It is an amenable number.

2231020313 is a deficient number, since it is larger than the sum of its proper divisors (131658319).

2231020313 is a wasteful number, since it uses less digits than its factorization.

2231020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23451.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2231020313 is about 47233.6777416284. The cubic root of 2231020313 is about 1306.6757806514.

Adding to 2231020313 its reverse (3130201322), we get a palindrome (5361221635).

The spelling of 2231020313 in words is "two billion, two hundred thirty-one million, twenty thousand, three hundred thirteen".