2232431231 has 2 divisors, whose sum is σ = 2232431232. Its totient is φ = 2232431230.

The previous prime is 2232431219. The next prime is 2232431287. The reversal of 2232431231 is 1321342322.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2232431231 is a prime.

It is a super-3 number, since 3×2232431231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2232431197 and 2232431206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2232481231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116215615 + 1116215616.

It is an arithmetic number, because the mean of its divisors is an integer number (1116215616).

Almost surely, 2^2232431231 is an apocalyptic number.

2232431231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2232431231 is an equidigital number, since it uses as much as digits as its factorization.

2232431231 is an evil number, because the sum of its binary digits is even.

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

The square root of 2232431231 is about 47248.6108896336. The cubic root of 2232431231 is about 1306.9511739121.

Adding to 2232431231 its reverse (1321342322), we get a palindrome (3553773553).

The spelling of 2232431231 in words is "two billion, two hundred thirty-two million, four hundred thirty-one thousand, two hundred thirty-one".