12301272 has 24 divisors (see below), whose sum is σ = 33316140. Its totient is φ = 4100400.

The previous prime is 12301243. The next prime is 12301273. The reversal of 12301272 is 27210321.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×12301272³ (a number of 22 digits) contains 333 as substring.

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 not an unprimeable number, because it can be changed into a prime (12301273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85354 + ... + 85497.

Almost surely, 2^12301272 is an apocalyptic number.

12301272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12301272 is an abundant number, since it is smaller than the sum of its proper divisors (21014868).

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

12301272 is a wasteful number, since it uses less digits than its factorization.

12301272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170863 (or 170856 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12301272 is about 3507.3169232335. The cubic root of 12301272 is about 230.8429809409.

Adding to 12301272 its reverse (27210321), we get a palindrome (39511593).

The spelling of 12301272 in words is "twelve million, three hundred one thousand, two hundred seventy-two".