12118601 has 4 divisors (see below), whose sum is σ = 13220304. Its totient is φ = 11016900.

The previous prime is 12118597. The next prime is 12118619. The reversal of 12118601 is 10681121.

12118601 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12118601 - 2² = 12118597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12118651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550835 + ... + 550856.

It is an arithmetic number, because the mean of its divisors is an integer number (3305076).

Almost surely, 2^12118601 is an apocalyptic number.

12118601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12118601 is a deficient number, since it is larger than the sum of its proper divisors (1101703).

12118601 is a wasteful number, since it uses less digits than its factorization.

12118601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101702.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 12118601 is about 3481.1781051822. The cubic root of 12118601 is about 229.6946230780.

Adding to 12118601 its reverse (10681121), we get a palindrome (22799722).

The spelling of 12118601 in words is "twelve million, one hundred eighteen thousand, six hundred one".