12003943477 has 2 divisors, whose sum is σ = 12003943478. Its totient is φ = 12003943476.

The previous prime is 12003943463. The next prime is 12003943507. The reversal of 12003943477 is 77434930021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7709893636 + 4294049841 = 87806^2 + 65529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12003943477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12003943877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001971738 + 6001971739.

It is an arithmetic number, because the mean of its divisors is an integer number (6001971739).

Almost surely, 2^12003943477 is an apocalyptic number.

It is an amenable number.

12003943477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12003943477 is an equidigital number, since it uses as much as digits as its factorization.

12003943477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 12003943477 in words is "twelve billion, three million, nine hundred forty-three thousand, four hundred seventy-seven".