122530243 has 4 divisors (see below), whose sum is σ = 133669368. Its totient is φ = 111391120.

The previous prime is 122530241. The next prime is 122530253. The reversal of 122530243 is 342035221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342035221 = 11 ⋅31094111.

It is a cyclic number.

It is not a de Polignac number, because 122530243 - 2¹ = 122530241 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122530241) 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, 5569546 + ... + 5569567.

It is an arithmetic number, because the mean of its divisors is an integer number (33417342).

Almost surely, 2^122530243 is an apocalyptic number.

122530243 is a deficient number, since it is larger than the sum of its proper divisors (11139125).

122530243 is a wasteful number, since it uses less digits than its factorization.

122530243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139124.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 122530243 is about 11069.3379657503. The cubic root of 122530243 is about 496.6850616032.

Adding to 122530243 its reverse (342035221), we get a palindrome (464565464).

The spelling of 122530243 in words is "one hundred twenty-two million, five hundred thirty thousand, two hundred forty-three".