123544215003 has 16 divisors (see below), whose sum is σ = 179706643200. Its totient is φ = 74872795680.

The previous prime is 123544215001. The next prime is 123544215013. The reversal of 123544215003 is 300512445321.

It is not a de Polignac number, because 123544215003 - 2¹ = 123544215001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123544215001) 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, 1654018 + ... + 1727096.

It is an arithmetic number, because the mean of its divisors is an integer number (11231665200).

Almost surely, 2^123544215003 is an apocalyptic number.

123544215003 is a deficient number, since it is larger than the sum of its proper divisors (56162428197).

123544215003 is a wasteful number, since it uses less digits than its factorization.

123544215003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124322.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 123544215003 in words is "one hundred twenty-three billion, five hundred forty-four million, two hundred fifteen thousand, three".