1232354143 has 2 divisors, whose sum is σ = 1232354144. Its totient is φ = 1232354142.

The previous prime is 1232354141. The next prime is 1232354161. The reversal of 1232354143 is 3414532321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1232354143 - 2¹ = 1232354141 is a prime.

Together with 1232354141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232354141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616177071 + 616177072.

It is an arithmetic number, because the mean of its divisors is an integer number (616177072).

Almost surely, 2^1232354143 is an apocalyptic number.

1232354143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232354143 is an equidigital number, since it uses as much as digits as its factorization.

1232354143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 1232354143 is about 35104.9019796381. The cubic root of 1232354143 is about 1072.1243912307.

Adding to 1232354143 its reverse (3414532321), we get a palindrome (4646886464).

It can be divided in two parts, 12323 and 54143, that added together give a palindrome (66466).

The spelling of 1232354143 in words is "one billion, two hundred thirty-two million, three hundred fifty-four thousand, one hundred forty-three".