120442369 has 4 divisors (see below), whose sum is σ = 120466260. Its totient is φ = 120418480.

The previous prime is 120442367. The next prime is 120442411. The reversal of 120442369 is 963244021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963244021 = 17 ⋅56661413.

It can be written as a sum of positive squares in 2 ways, for example, as 100300225 + 20142144 = 10015^2 + 4488^2 .

It is a cyclic number.

It is not a de Polignac number, because 120442369 - 2¹ = 120442367 is a prime.

It is a super-2 number, since 2×120442369² = 29012728500664322, which contains 22 as substring.

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 120442369.

It is not an unprimeable number, because it can be changed into a prime (120442367) 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, 1102 + ... + 15559.

It is an arithmetic number, because the mean of its divisors is an integer number (30116565).

Almost surely, 2^120442369 is an apocalyptic number.

It is an amenable number.

120442369 is a deficient number, since it is larger than the sum of its proper divisors (23891).

120442369 is an equidigital number, since it uses as much as digits as its factorization.

120442369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23890.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 120442369 is about 10974.6238659919. The cubic root of 120442369 is about 493.8477692627.

The spelling of 120442369 in words is "one hundred twenty million, four hundred forty-two thousand, three hundred sixty-nine".