123166340147 has 16 divisors (see below), whose sum is σ = 126490751520. Its totient is φ = 119889268992.

The previous prime is 123166340119. The next prime is 123166340149. The reversal of 123166340147 is 741043661321.

It is not a de Polignac number, because 123166340147 - 2⁶ = 123166340083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123166340147.

It is not an unprimeable number, because it can be changed into a prime (123166340149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6030629 + ... + 6051017.

It is an arithmetic number, because the mean of its divisors is an integer number (7905671970).

Almost surely, 2^123166340147 is an apocalyptic number.

123166340147 is a deficient number, since it is larger than the sum of its proper divisors (3324411373).

123166340147 is an equidigital number, since it uses as much as digits as its factorization.

123166340147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21542.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 123166340147 in words is "one hundred twenty-three billion, one hundred sixty-six million, three hundred forty thousand, one hundred forty-seven".