12671011 has 4 divisors (see below), whose sum is σ = 12709624. Its totient is φ = 12632400.

The previous prime is 12671003. The next prime is 12671023. The reversal of 12671011 is 11017621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11017621 = 23 ⋅479027.

It is a cyclic number.

It is not a de Polignac number, because 12671011 - 2³ = 12671003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12671011.

It is not an unprimeable number, because it can be changed into a prime (12671041) 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, 18810 + ... + 19471.

It is an arithmetic number, because the mean of its divisors is an integer number (3177406).

Almost surely, 2^12671011 is an apocalyptic number.

12671011 is a deficient number, since it is larger than the sum of its proper divisors (38613).

12671011 is an equidigital number, since it uses as much as digits as its factorization.

12671011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38612.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 12671011 is about 3559.6363578321. The cubic root of 12671011 is about 233.1330019750.

Adding to 12671011 its reverse (11017621), we get a palindrome (23688632).

It can be divided in two parts, 1267 and 1011, that added together give a triangular number (2278 = T₆₇).

The spelling of 12671011 in words is "twelve million, six hundred seventy-one thousand, eleven".