2231132231 has 2 divisors, whose sum is σ = 2231132232. Its totient is φ = 2231132230.

The previous prime is 2231132203. The next prime is 2231132237. The reversal of 2231132231 is 1322311322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231132231 - 2¹⁰ = 2231131207 is a prime.

It is a super-3 number, since 3×2231132231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231132237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115566115 + 1115566116.

It is an arithmetic number, because the mean of its divisors is an integer number (1115566116).

Almost surely, 2^2231132231 is an apocalyptic number.

2231132231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231132231 is an equidigital number, since it uses as much as digits as its factorization.

2231132231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 2231132231 is about 47234.8624534887. The cubic root of 2231132231 is about 1306.6976298615.

Adding to 2231132231 its reverse (1322311322), we get a palindrome (3553443553).

The spelling of 2231132231 in words is "two billion, two hundred thirty-one million, one hundred thirty-two thousand, two hundred thirty-one".