122561123 has 8 divisors (see below), whose sum is σ = 124527456. Its totient is φ = 120601600.

The previous prime is 122561093. The next prime is 122561129. The reversal of 122561123 is 321165221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122561123 - 2²⁴ = 105783907 is a prime.

It is a super-2 number, since 2×122561123² = 30042457742042258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122561129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44165 + ... + 46857.

It is an arithmetic number, because the mean of its divisors is an integer number (15565932).

Almost surely, 2^122561123 is an apocalyptic number.

122561123 is a deficient number, since it is larger than the sum of its proper divisors (1966333).

122561123 is an equidigital number, since it uses as much as digits as its factorization.

122561123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405.

The product of its digits is 720, while the sum is 23.

The square root of 122561123 is about 11070.7327219114. The cubic root of 122561123 is about 496.7267828579.

The spelling of 122561123 in words is "one hundred twenty-two million, five hundred sixty-one thousand, one hundred twenty-three".