120045523 has 4 divisors (see below), whose sum is σ = 129279808. Its totient is φ = 110811240.

The previous prime is 120045521. The next prime is 120045539. The reversal of 120045523 is 325540021.

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

It is a cyclic number.

It is not a de Polignac number, because 120045523 - 2¹ = 120045521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120045494 and 120045503.

It is not an unprimeable number, because it can be changed into a prime (120045521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4617123 + ... + 4617148.

It is an arithmetic number, because the mean of its divisors is an integer number (32319952).

Almost surely, 2^120045523 is an apocalyptic number.

120045523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120045523 is a deficient number, since it is larger than the sum of its proper divisors (9234285).

120045523 is an equidigital number, since it uses as much as digits as its factorization.

120045523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234284.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 120045523 is about 10956.5287842455. The cubic root of 120045523 is about 493.3047788541.

Adding to 120045523 its reverse (325540021), we get a palindrome (445585544).

The spelling of 120045523 in words is "one hundred twenty million, forty-five thousand, five hundred twenty-three".