12101663 has 4 divisors (see below), whose sum is σ = 13830480. Its totient is φ = 10372848.

The previous prime is 12101659. The next prime is 12101669. The reversal of 12101663 is 36610121.

12101663 is digitally balanced in base 2 and base 8, 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 an emirpimes, since its reverse is a distinct semiprime: 36610121 = 53 ⋅690757.

It is a cyclic number.

It is not a de Polignac number, because 12101663 - 2² = 12101659 is a prime.

It is a Duffinian number.

12101663 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101669) 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, 864398 + ... + 864411.

It is an arithmetic number, because the mean of its divisors is an integer number (3457620).

Almost surely, 2^12101663 is an apocalyptic number.

12101663 is a deficient number, since it is larger than the sum of its proper divisors (1728817).

12101663 is an equidigital number, since it uses as much as digits as its factorization.

12101663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728816.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12101663 is about 3478.7444574156. The cubic root of 12101663 is about 229.5875595225.

Adding to 12101663 its reverse (36610121), we get a palindrome (48711784).

The spelling of 12101663 in words is "twelve million, one hundred one thousand, six hundred sixty-three".