12705429311 has 4 divisors (see below), whose sum is σ = 12706423152. Its totient is φ = 12704435472.

The previous prime is 12705429283. The next prime is 12705429323. The reversal of 12705429311 is 11392450721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11392450721 = 947 ⋅12030043.

It is a cyclic number.

It is not a de Polignac number, because 12705429311 - 2¹⁰ = 12705428287 is a prime.

It is a super-2 number, since 2×12705429311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705429211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477491 + ... + 503396.

It is an arithmetic number, because the mean of its divisors is an integer number (3176605788).

Almost surely, 2^12705429311 is an apocalyptic number.

12705429311 is a deficient number, since it is larger than the sum of its proper divisors (993841).

12705429311 is an equidigital number, since it uses as much as digits as its factorization.

12705429311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993840.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 12705429311 in words is "twelve billion, seven hundred five million, four hundred twenty-nine thousand, three hundred eleven".