12261712711 has 4 divisors (see below), whose sum is σ = 12262197312. Its totient is φ = 12261228112.

The previous prime is 12261712703. The next prime is 12261712721. The reversal of 12261712711 is 11721716221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12261712711 - 2³ = 12261712703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261712721) 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, 202126 + ... + 255691.

It is an arithmetic number, because the mean of its divisors is an integer number (3065549328).

Almost surely, 2^12261712711 is an apocalyptic number.

12261712711 is a deficient number, since it is larger than the sum of its proper divisors (484601).

12261712711 is an equidigital number, since it uses as much as digits as its factorization.

12261712711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484600.

The product of its digits is 2352, while the sum is 31.

The spelling of 12261712711 in words is "twelve billion, two hundred sixty-one million, seven hundred twelve thousand, seven hundred eleven".