123700500605 has 16 divisors (see below), whose sum is σ = 168975863424. Its totient is φ = 86052521280.

The previous prime is 123700500593. The next prime is 123700500613. The reversal of 123700500605 is 506005007321.

It is not a de Polignac number, because 123700500605 - 2¹² = 123700496509 is a prime.

It is a Duffinian number.

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, 48892214 + ... + 48894743.

It is an arithmetic number, because the mean of its divisors is an integer number (10560991464).

Almost surely, 2^123700500605 is an apocalyptic number.

It is an amenable number.

123700500605 is a deficient number, since it is larger than the sum of its proper divisors (45275362819).

123700500605 is a wasteful number, since it uses less digits than its factorization.

123700500605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97786996.

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 123700500605 its reverse (506005007321), we get a palindrome (629705507926).

The spelling of 123700500605 in words is "one hundred twenty-three billion, seven hundred million, five hundred thousand, six hundred five".