21007112759683 has 2 divisors, whose sum is σ = 21007112759684. Its totient is φ = 21007112759682.

The previous prime is 21007112759587. The next prime is 21007112759741. The reversal of 21007112759683 is 38695721170012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21007112759683 - 2¹³ = 21007112751491 is a prime.

It is a super-2 number, since 2×21007112759683² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21007112759683.

It is not a weakly prime, because it can be changed into another prime (21007112709683) 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 as a sum of consecutive naturals, namely, 10503556379841 + 10503556379842.

It is an arithmetic number, because the mean of its divisors is an integer number (10503556379842).

Almost surely, 2^{21007112759683} is an apocalyptic number.

21007112759683 is a deficient number, since it is larger than the sum of its proper divisors (1).

21007112759683 is an equidigital number, since it uses as much as digits as its factorization.

21007112759683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 21007112759683 in words is "twenty-one trillion, seven billion, one hundred twelve million, seven hundred fifty-nine thousand, six hundred eighty-three".