123524135503 has 2 divisors, whose sum is σ = 123524135504. Its totient is φ = 123524135502.

The previous prime is 123524135479. The next prime is 123524135509. The reversal of 123524135503 is 305531425321.

It is a strong prime.

It is an emirp because it is prime and its reverse (305531425321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123524135503 - 2⁹ = 123524134991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123524135509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61762067751 + 61762067752.

It is an arithmetic number, because the mean of its divisors is an integer number (61762067752).

Almost surely, 2^123524135503 is an apocalyptic number.

123524135503 is a deficient number, since it is larger than the sum of its proper divisors (1).

123524135503 is an equidigital number, since it uses as much as digits as its factorization.

123524135503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 123524135503 in words is "one hundred twenty-three billion, five hundred twenty-four million, one hundred thirty-five thousand, five hundred three".