12100678 has 4 divisors (see below), whose sum is σ = 18151020. Its totient is φ = 6050338.

The previous prime is 12100657. The next prime is 12100679. The reversal of 12100678 is 87600121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87600121 = 7 ⋅12514303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025168 + ... + 3025171.

It is an arithmetic number, because the mean of its divisors is an integer number (4537755).

Almost surely, 2^12100678 is an apocalyptic number.

12100678 is a deficient number, since it is larger than the sum of its proper divisors (6050342).

12100678 is an equidigital number, since it uses as much as digits as its factorization.

12100678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050341.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 12100678 is about 3478.6028804680. The cubic root of 12100678 is about 229.5813303544.

Adding to 12100678 its reverse (87600121), we get a palindrome (99700799).

The spelling of 12100678 in words is "twelve million, one hundred thousand, six hundred seventy-eight".