120001113 has 12 divisors (see below), whose sum is σ = 183531348. Its totient is φ = 75294720.

The previous prime is 120001111. The next prime is 120001117. The reversal of 120001113 is 311100021.

It can be written as a sum of positive squares in 2 ways, for example, as 46949904 + 73051209 = 6852^2 + 8547^2 .

It is not a de Polignac number, because 120001113 - 2¹ = 120001111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120001095 and 120001104.

It is not an unprimeable number, because it can be changed into a prime (120001111) 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 11 ways as a sum of consecutive naturals, for example, 392008 + ... + 392313.

It is an arithmetic number, because the mean of its divisors is an integer number (15294279).

Almost surely, 2^120001113 is an apocalyptic number.

It is an amenable number.

120001113 is a deficient number, since it is larger than the sum of its proper divisors (63530235).

120001113 is a wasteful number, since it uses less digits than its factorization.

120001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784344 (or 784341 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 120001113 is about 10954.5019512527. The cubic root of 120001113 is about 493.2439398025.

Adding to 120001113 its reverse (311100021), we get a palindrome (431101134).

The spelling of 120001113 in words is "one hundred twenty million, one thousand, one hundred thirteen".