120542331 has 16 divisors (see below), whose sum is σ = 197813504. Its totient is φ = 63582624.

The previous prime is 120542321. The next prime is 120542347. The reversal of 120542331 is 133245021.

It is not a de Polignac number, because 120542331 - 2¹¹ = 120540283 is a prime.

It is a super-2 number, since 2×120542331² = 29060907125827122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 120542298 and 120542307.

It is not an unprimeable number, because it can be changed into a prime (120542321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220501 + ... + 221046.

It is an arithmetic number, because the mean of its divisors is an integer number (12363344).

Almost surely, 2^120542331 is an apocalyptic number.

120542331 is a deficient number, since it is larger than the sum of its proper divisors (77271173).

120542331 is a wasteful number, since it uses less digits than its factorization.

120542331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441570.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 120542331 is about 10979.1771549602. The cubic root of 120542331 is about 493.9843556378.

Adding to 120542331 its reverse (133245021), we get a palindrome (253787352).

The spelling of 120542331 in words is "one hundred twenty million, five hundred forty-two thousand, three hundred thirty-one".