120281123 has 4 divisors (see below), whose sum is σ = 121019208. Its totient is φ = 119543040.

The previous prime is 120281113. The next prime is 120281201. The reversal of 120281123 is 321182021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321182021 = 1187 ⋅270583.

It is a cyclic number.

It is not a de Polignac number, because 120281123 - 2⁴ = 120281107 is a prime.

It is a super-2 number, since 2×120281123² = 28935097100282258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120281095 and 120281104.

It is not an unprimeable number, because it can be changed into a prime (120281113) 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 3 ways as a sum of consecutive naturals, for example, 368798 + ... + 369123.

It is an arithmetic number, because the mean of its divisors is an integer number (30254802).

Almost surely, 2^120281123 is an apocalyptic number.

120281123 is a deficient number, since it is larger than the sum of its proper divisors (738085).

120281123 is an equidigital number, since it uses as much as digits as its factorization.

120281123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738084.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 120281123 is about 10967.2750945711. The cubic root of 120281123 is about 493.6272861091.

The spelling of 120281123 in words is "one hundred twenty million, two hundred eighty-one thousand, one hundred twenty-three".