122643710723 has 4 divisors (see below), whose sum is σ = 126599959488. Its totient is φ = 118687461960.

The previous prime is 122643710687. The next prime is 122643710729. The reversal of 122643710723 is 327017346221.

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

It is a cyclic number.

It is not a de Polignac number, because 122643710723 - 2²⁰ = 122642662147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122643710729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978124336 + ... + 1978124397.

It is an arithmetic number, because the mean of its divisors is an integer number (31649989872).

Almost surely, 2^122643710723 is an apocalyptic number.

122643710723 is a deficient number, since it is larger than the sum of its proper divisors (3956248765).

122643710723 is an equidigital number, since it uses as much as digits as its factorization.

122643710723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956248764.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 122643710723 in words is "one hundred twenty-two billion, six hundred forty-three million, seven hundred ten thousand, seven hundred twenty-three".