12211687723 has 2 divisors, whose sum is σ = 12211687724. Its totient is φ = 12211687722.

The previous prime is 12211687711. The next prime is 12211687727. The reversal of 12211687723 is 32778611221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12211687723 - 2²⁵ = 12178133291 is a prime.

It is not a weakly prime, because it can be changed into another prime (12211687727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105843861 + 6105843862.

It is an arithmetic number, because the mean of its divisors is an integer number (6105843862).

Almost surely, 2^12211687723 is an apocalyptic number.

12211687723 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211687723 is an equidigital number, since it uses as much as digits as its factorization.

12211687723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The spelling of 12211687723 in words is "twelve billion, two hundred eleven million, six hundred eighty-seven thousand, seven hundred twenty-three".