1235442115543 has 2 divisors, whose sum is σ = 1235442115544. Its totient is φ = 1235442115542.

The previous prime is 1235442115499. The next prime is 1235442115553. The reversal of 1235442115543 is 3455112445321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1235442115543 - 2²¹ = 1235440018391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1235442115496 and 1235442115505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235442115553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617721057771 + 617721057772.

It is an arithmetic number, because the mean of its divisors is an integer number (617721057772).

Almost surely, 2^{1235442115543} is an apocalyptic number.

1235442115543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235442115543 is an equidigital number, since it uses as much as digits as its factorization.

1235442115543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 40.

The spelling of 1235442115543 in words is "one trillion, two hundred thirty-five billion, four hundred forty-two million, one hundred fifteen thousand, five hundred forty-three".