1231443242023 has 2 divisors, whose sum is σ = 1231443242024. Its totient is φ = 1231443242022.

The previous prime is 1231443241997. The next prime is 1231443242083. The reversal of 1231443242023 is 3202423441321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231443242023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231443242083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615721621011 + 615721621012.

It is an arithmetic number, because the mean of its divisors is an integer number (615721621012).

Almost surely, 2^{1231443242023} is an apocalyptic number.

1231443242023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231443242023 is an equidigital number, since it uses as much as digits as its factorization.

1231443242023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1231443242023 its reverse (3202423441321), we get a palindrome (4433866683344).

The spelling of 1231443242023 in words is "one trillion, two hundred thirty-one billion, four hundred forty-three million, two hundred forty-two thousand, twenty-three".