123072536207 has 4 divisors (see below), whose sum is σ = 123086218416. Its totient is φ = 123058854000.

The previous prime is 123072536123. The next prime is 123072536227. The reversal of 123072536207 is 702635270321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702635270321 = 673 ⋅1044034577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123072536207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123072536227) 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 3 ways as a sum of consecutive naturals, for example, 6827603 + ... + 6845604.

It is an arithmetic number, because the mean of its divisors is an integer number (30771554604).

Almost surely, 2^123072536207 is an apocalyptic number.

123072536207 is a deficient number, since it is larger than the sum of its proper divisors (13682209).

123072536207 is an equidigital number, since it uses as much as digits as its factorization.

123072536207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13682208.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 123072536207 in words is "one hundred twenty-three billion, seventy-two million, five hundred thirty-six thousand, two hundred seven".