122723280785 has 16 divisors (see below), whose sum is σ = 168352387200. Its totient is φ = 84130020096.

The previous prime is 122723280749. The next prime is 122723280847. The reversal of 122723280785 is 587082327221.

It is a cyclic number.

It is not a de Polignac number, because 122723280785 - 2¹⁰ = 122723279761 is a prime.

It is a super-2 number, since 2×122723280785² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351080 + ... + 607209.

It is an arithmetic number, because the mean of its divisors is an integer number (10522024200).

Almost surely, 2^122723280785 is an apocalyptic number.

It is an amenable number.

122723280785 is a deficient number, since it is larger than the sum of its proper divisors (45629106415).

122723280785 is an equidigital number, since it uses as much as digits as its factorization.

122723280785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961960.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 122723280785 in words is "one hundred twenty-two billion, seven hundred twenty-three million, two hundred eighty thousand, seven hundred eighty-five".