12929311361 has 2 divisors, whose sum is σ = 12929311362. Its totient is φ = 12929311360.

The previous prime is 12929311331. The next prime is 12929311403. The reversal of 12929311361 is 16311392921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8654766961 + 4274544400 = 93031^2 + 65380^2 .

It is a cyclic number.

It is not a de Polignac number, because 12929311361 - 2²² = 12925117057 is a prime.

It is not a weakly prime, because it can be changed into another prime (12929311321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6464655680 + 6464655681.

It is an arithmetic number, because the mean of its divisors is an integer number (6464655681).

Almost surely, 2^12929311361 is an apocalyptic number.

It is an amenable number.

12929311361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12929311361 is an equidigital number, since it uses as much as digits as its factorization.

12929311361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The spelling of 12929311361 in words is "twelve billion, nine hundred twenty-nine million, three hundred eleven thousand, three hundred sixty-one".