122731530773 has 4 divisors (see below), whose sum is σ = 122740813068. Its totient is φ = 122722248480.

The previous prime is 122731530749. The next prime is 122731530781. The reversal of 122731530773 is 377035137221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117787612804 + 4943917969 = 343202^2 + 70313^2 .

It is a cyclic number.

It is not a de Polignac number, because 122731530773 - 2⁶ = 122731530709 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 122731530773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122731530793) 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, 4621286 + ... + 4647767.

It is an arithmetic number, because the mean of its divisors is an integer number (30685203267).

Almost surely, 2^122731530773 is an apocalyptic number.

It is an amenable number.

122731530773 is a deficient number, since it is larger than the sum of its proper divisors (9282295).

122731530773 is an equidigital number, since it uses as much as digits as its factorization.

122731530773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9282294.

The product of its (nonzero) digits is 185220, while the sum is 41.

Adding to 122731530773 its reverse (377035137221), we get a palindrome (499766667994).

The spelling of 122731530773 in words is "one hundred twenty-two billion, seven hundred thirty-one million, five hundred thirty thousand, seven hundred seventy-three".