12070781999 has 2 divisors, whose sum is σ = 12070782000. Its totient is φ = 12070781998.

The previous prime is 12070781981. The next prime is 12070782037. The reversal of 12070781999 is 99918707021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12070781999 - 2³² = 7775814703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12070781999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12070781939) 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, 6035390999 + 6035391000.

It is an arithmetic number, because the mean of its divisors is an integer number (6035391000).

Almost surely, 2^12070781999 is an apocalyptic number.

12070781999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12070781999 is an equidigital number, since it uses as much as digits as its factorization.

12070781999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 12070781999 in words is "twelve billion, seventy million, seven hundred eighty-one thousand, nine hundred ninety-nine".