20021103083 has 2 divisors, whose sum is σ = 20021103084. Its totient is φ = 20021103082.

The previous prime is 20021103079. The next prime is 20021103103. The reversal of 20021103083 is 38030112002.

It is an a-pointer prime, because the next prime (20021103103) can be obtained adding 20021103083 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021103083 - 2² = 20021103079 is a prime.

It is a super-2 number, since 2×20021103083² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20021100083) 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, 10010551541 + 10010551542.

It is an arithmetic number, because the mean of its divisors is an integer number (10010551542).

Almost surely, 2^20021103083 is an apocalyptic number.

20021103083 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021103083 is an equidigital number, since it uses as much as digits as its factorization.

20021103083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20021103083 its reverse (38030112002), we get a palindrome (58051215085).

The spelling of 20021103083 in words is "twenty billion, twenty-one million, one hundred three thousand, eighty-three".