1232501143 has 2 divisors, whose sum is σ = 1232501144. Its totient is φ = 1232501142.

The previous prime is 1232501119. The next prime is 1232501197. The reversal of 1232501143 is 3411052321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1232501143 - 2⁵ = 1232501111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232501243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616250571 + 616250572.

It is an arithmetic number, because the mean of its divisors is an integer number (616250572).

Almost surely, 2^1232501143 is an apocalyptic number.

1232501143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232501143 is an equidigital number, since it uses as much as digits as its factorization.

1232501143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1232501143 is about 35106.9956418945. The cubic root of 1232501143 is about 1072.1670185930.

Adding to 1232501143 its reverse (3411052321), we get a palindrome (4643553464).

The spelling of 1232501143 in words is "one billion, two hundred thirty-two million, five hundred one thousand, one hundred forty-three".