123242550013503 has 16 divisors (see below), whose sum is σ = 182594498760960. Its totient is φ = 82155875575608.

The previous prime is 123242550013423. The next prime is 123242550013573. The reversal of 123242550013503 is 305310055242321.

123242550013503 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 42 + 550 + 0 + 13 + 50 + 3 = 666.

It is not a de Polignac number, because 123242550013503 - 2¹² = 123242550009407 is a prime.

It is a super-2 number, since 2×123242550013503² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123242550013573) 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 in 15 ways as a sum of consecutive naturals, for example, 161401875 + ... + 162163652.

It is an arithmetic number, because the mean of its divisors is an integer number (11412156172560).

Almost surely, 2^{123242550013503} is an apocalyptic number.

123242550013503 is a deficient number, since it is larger than the sum of its proper divisors (59351948747457).

123242550013503 is a wasteful number, since it uses less digits than its factorization.

123242550013503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323579643 (or 323579637 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 123242550013503 in words is "one hundred twenty-three trillion, two hundred forty-two billion, five hundred fifty million, thirteen thousand, five hundred three".