123000016503545 has 32 divisors (see below), whose sum is σ = 151040494927872. Its totient is φ = 96114726850752.

The previous prime is 123000016503493. The next prime is 123000016503593. The reversal of 123000016503545 is 545305610000321.

It is a cyclic number.

It is not a de Polignac number, because 123000016503545 - 2¹⁰ = 123000016502521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1974191864 + ... + 1974254166.

It is an arithmetic number, because the mean of its divisors is an integer number (4720015466496).

Almost surely, 2^{123000016503545} is an apocalyptic number.

It is an amenable number.

123000016503545 is a deficient number, since it is larger than the sum of its proper divisors (28040478424327).

123000016503545 is a wasteful number, since it uses less digits than its factorization.

123000016503545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78941.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 123000016503545 its reverse (545305610000321), we get a palindrome (668305626503866).

The spelling of 123000016503545 in words is "one hundred twenty-three trillion, sixteen million, five hundred three thousand, five hundred forty-five".