120684811 has 4 divisors (see below), whose sum is σ = 129968272. Its totient is φ = 111401352.

The previous prime is 120684803. The next prime is 120684821. The reversal of 120684811 is 118486021.

120684811 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118486021 = 751 ⋅157771.

It is a cyclic number.

It is not a de Polignac number, because 120684811 - 2³ = 120684803 is a prime.

It is a super-2 number, since 2×120684811² = 29129647212211442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120684821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4641711 + ... + 4641736.

It is an arithmetic number, because the mean of its divisors is an integer number (32492068).

Almost surely, 2^120684811 is an apocalyptic number.

120684811 is a deficient number, since it is larger than the sum of its proper divisors (9283461).

120684811 is an equidigital number, since it uses as much as digits as its factorization.

120684811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283460.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 120684811 is about 10985.6638852643. The cubic root of 120684811 is about 494.1789074271.

The spelling of 120684811 in words is "one hundred twenty million, six hundred eighty-four thousand, eight hundred eleven".