12481371 has 20 divisors (see below), whose sum is σ = 21309552. Its totient is φ = 7131888.

The previous prime is 12481369. The next prime is 12481373. The reversal of 12481371 is 17318421.

It is an interprime number because it is at equal distance from previous prime (12481369) and next prime (12481373).

It is not a de Polignac number, because 12481371 - 2¹ = 12481369 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12481373) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10440 + ... + 11573.

Almost surely, 2^12481371 is an apocalyptic number.

12481371 is a deficient number, since it is larger than the sum of its proper divisors (8828181).

12481371 is an equidigital number, since it uses as much as digits as its factorization.

12481371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22032 (or 22023 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 12481371 is about 3532.8983851789. The cubic root of 12481371 is about 231.9640934819.

Adding to 12481371 its reverse (17318421), we get a palindrome (29799792).

The spelling of 12481371 in words is "twelve million, four hundred eighty-one thousand, three hundred seventy-one".