2231363261 has 4 divisors (see below), whose sum is σ = 2232433500. Its totient is φ = 2230293024.

The previous prime is 2231363219. The next prime is 2231363359. The reversal of 2231363261 is 1623631322.

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 1559776036 + 671587225 = 39494^2 + 25915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231363261 is a prime.

It is a super-3 number, since 3×2231363261³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231363161) 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, 531986 + ... + 536163.

It is an arithmetic number, because the mean of its divisors is an integer number (558108375).

Almost surely, 2^2231363261 is an apocalyptic number.

It is an amenable number.

2231363261 is a deficient number, since it is larger than the sum of its proper divisors (1070239).

2231363261 is a wasteful number, since it uses less digits than its factorization.

2231363261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070238.

The product of its digits is 7776, while the sum is 29.

The square root of 2231363261 is about 47237.3079355714. The cubic root of 2231363261 is about 1306.7427304207.

Adding to 2231363261 its reverse (1623631322), we get a palindrome (3854994583).

The spelling of 2231363261 in words is "two billion, two hundred thirty-one million, three hundred sixty-three thousand, two hundred sixty-one".