12601811 has 4 divisors (see below), whose sum is σ = 13343112. Its totient is φ = 11860512.

The previous prime is 12601789. The next prime is 12601819. The reversal of 12601811 is 11810621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11810621 = 1499 ⋅7879.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12601811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12601819) 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, 370625 + ... + 370658.

It is an arithmetic number, because the mean of its divisors is an integer number (3335778).

Almost surely, 2^12601811 is an apocalyptic number.

12601811 is a deficient number, since it is larger than the sum of its proper divisors (741301).

12601811 is an equidigital number, since it uses as much as digits as its factorization.

12601811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741300.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 12601811 is about 3549.9029564201. The cubic root of 12601811 is about 232.7078251211.

The spelling of 12601811 in words is "twelve million, six hundred one thousand, eight hundred eleven".