135623234240503 has 2 divisors, whose sum is σ = 135623234240504. Its totient is φ = 135623234240502.

The previous prime is 135623234240497. The next prime is 135623234240537. The reversal of 135623234240503 is 305042432326531.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (305042432326531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135623234240503 is a prime.

It is a super-3 number, since 3×135623234240503³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135623234240503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135623234240203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67811617120251 + 67811617120252.

It is an arithmetic number, because the mean of its divisors is an integer number (67811617120252).

Almost surely, 2^{135623234240503} is an apocalyptic number.

135623234240503 is a deficient number, since it is larger than the sum of its proper divisors (1).

135623234240503 is an equidigital number, since it uses as much as digits as its factorization.

135623234240503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 135623234240503 in words is "one hundred thirty-five trillion, six hundred twenty-three billion, two hundred thirty-four million, two hundred forty thousand, five hundred three".