232143031 has 2 divisors, whose sum is σ = 232143032. Its totient is φ = 232143030.

The previous prime is 232143029. The next prime is 232143047. The reversal of 232143031 is 130341232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 232143031 - 2¹ = 232143029 is a prime.

It is a super-2 number, since 2×232143031² = 107780773683733922, which contains 22 as substring.

Together with 232143029, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232143631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116071515 + 116071516.

It is an arithmetic number, because the mean of its divisors is an integer number (116071516).

Almost surely, 2^232143031 is an apocalyptic number.

232143031 is a deficient number, since it is larger than the sum of its proper divisors (1).

232143031 is an equidigital number, since it uses as much as digits as its factorization.

232143031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 232143031 is about 15236.2407108840. The cubic root of 232143031 is about 614.5896140661.

Adding to 232143031 its reverse (130341232), we get a palindrome (362484263).

The spelling of 232143031 in words is "two hundred thirty-two million, one hundred forty-three thousand, thirty-one".