123544050203 has 6 divisors (see below), whose sum is σ = 143714507436. Its totient is φ = 105894900132.

The previous prime is 123544050199. The next prime is 123544050209. The reversal of 123544050203 is 302050445321.

It is a happy number.

It is not a de Polignac number, because 123544050203 - 2² = 123544050199 is a prime.

It is a super-3 number, since 3×123544050203³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123544050209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1260653525 + ... + 1260653622.

It is an arithmetic number, because the mean of its divisors is an integer number (23952417906).

Almost surely, 2^123544050203 is an apocalyptic number.

123544050203 is a deficient number, since it is larger than the sum of its proper divisors (20170457233).

123544050203 is an equidigital number, since it uses as much as digits as its factorization.

123544050203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521307161 (or 2521307154 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 123544050203 its reverse (302050445321), we get a palindrome (425594495524).

The spelling of 123544050203 in words is "one hundred twenty-three billion, five hundred forty-four million, fifty thousand, two hundred three".