21063083 has 2 divisors, whose sum is σ = 21063084. Its totient is φ = 21063082.

The previous prime is 21063079. The next prime is 21063089. The reversal of 21063083 is 38036012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21063083 - 2² = 21063079 is a prime.

It is equal to p_1333742 and since 21063083 and 1333742 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (21063089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10531541 + 10531542.

It is an arithmetic number, because the mean of its divisors is an integer number (10531542).

Almost surely, 2^21063083 is an apocalyptic number.

21063083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21063083 is an equidigital number, since it uses as much as digits as its factorization.

21063083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 21063083 is about 4589.4534532992. The cubic root of 21063083 is about 276.1683973739.

Adding to 21063083 its reverse (38036012), we get a palindrome (59099095).

The spelling of 21063083 in words is "twenty-one million, sixty-three thousand, eighty-three".