12101436 has 18 divisors (see below), whose sum is σ = 30589832. Its totient is φ = 4033800.

The previous prime is 12101417. The next prime is 12101443. The reversal of 12101436 is 63410121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 168040 + ... + 168111.

Almost surely, 2^12101436 is an apocalyptic number.

It is an amenable number.

12101436 is an abundant number, since it is smaller than the sum of its proper divisors (18488396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101436 is a wasteful number, since it uses less digits than its factorization.

12101436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336161 (or 336156 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12101436 is about 3478.7118305488. The cubic root of 12101436 is about 229.5861239980.

Adding to 12101436 its reverse (63410121), we get a palindrome (75511557).

The spelling of 12101436 in words is "twelve million, one hundred one thousand, four hundred thirty-six".