12947435401 has 2 divisors, whose sum is σ = 12947435402. Its totient is φ = 12947435400.

The previous prime is 12947435393. The next prime is 12947435441. The reversal of 12947435401 is 10453474921.

12947435401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12947435441) can be obtained adding 12947435401 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12030799225 + 916636176 = 109685^2 + 30276^2 .

It is a cyclic number.

It is not a de Polignac number, because 12947435401 - 2³ = 12947435393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12947435441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6473717700 + 6473717701.

It is an arithmetic number, because the mean of its divisors is an integer number (6473717701).

Almost surely, 2^12947435401 is an apocalyptic number.

It is an amenable number.

12947435401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12947435401 is an equidigital number, since it uses as much as digits as its factorization.

12947435401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12947435401 in words is "twelve billion, nine hundred forty-seven million, four hundred thirty-five thousand, four hundred one".