21983067803 has 2 divisors, whose sum is σ = 21983067804. Its totient is φ = 21983067802.

The previous prime is 21983067793. The next prime is 21983067823. The reversal of 21983067803 is 30876038912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21983067803 - 2⁴ = 21983067787 is a prime.

It is not a weakly prime, because it can be changed into another prime (21983067823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10991533901 + 10991533902.

It is an arithmetic number, because the mean of its divisors is an integer number (10991533902).

Almost surely, 2^21983067803 is an apocalyptic number.

21983067803 is a deficient number, since it is larger than the sum of its proper divisors (1).

21983067803 is an equidigital number, since it uses as much as digits as its factorization.

21983067803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 21983067803 in words is "twenty-one billion, nine hundred eighty-three million, sixty-seven thousand, eight hundred three".