123340523502 has 32 divisors (see below), whose sum is σ = 284712505344. Its totient is φ = 34891236000.

The previous prime is 123340523447. The next prime is 123340523513. The reversal of 123340523502 is 205325043321.

It is a self number, because there is not a number n which added to its sum of digits gives 123340523502.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 14533774 + ... + 14542257.

It is an arithmetic number, because the mean of its divisors is an integer number (8897265792).

Almost surely, 2^123340523502 is an apocalyptic number.

123340523502 is an abundant number, since it is smaller than the sum of its proper divisors (161371981842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123340523502 is a wasteful number, since it uses less digits than its factorization.

123340523502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29076144.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 123340523502 its reverse (205325043321), we get a palindrome (328665566823).

The spelling of 123340523502 in words is "one hundred twenty-three billion, three hundred forty million, five hundred twenty-three thousand, five hundred two".