123005747206 has 4 divisors (see below), whose sum is σ = 184508620812. Its totient is φ = 61502873602.

The previous prime is 123005747203. The next prime is 123005747219. The reversal of 123005747206 is 602747500321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123005747203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30751436800 + ... + 30751436803.

It is an arithmetic number, because the mean of its divisors is an integer number (46127155203).

Almost surely, 2^123005747206 is an apocalyptic number.

123005747206 is a deficient number, since it is larger than the sum of its proper divisors (61502873606).

123005747206 is an equidigital number, since it uses as much as digits as its factorization.

123005747206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61502873605.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 123005747206 in words is "one hundred twenty-three billion, five million, seven hundred forty-seven thousand, two hundred six".