21230100083 has 2 divisors, whose sum is σ = 21230100084. Its totient is φ = 21230100082.

The previous prime is 21230100077. The next prime is 21230100103. The reversal of 21230100083 is 38000103212.

It is an a-pointer prime, because the next prime (21230100103) can be obtained adding 21230100083 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21230100083 - 2⁸ = 21230099827 is a prime.

It is not a weakly prime, because it can be changed into another prime (21230130083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615050041 + 10615050042.

It is an arithmetic number, because the mean of its divisors is an integer number (10615050042).

Almost surely, 2^21230100083 is an apocalyptic number.

21230100083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230100083 is an equidigital number, since it uses as much as digits as its factorization.

21230100083 is an evil number, because the sum of its binary digits is even.

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

Adding to 21230100083 its reverse (38000103212), we get a palindrome (59230203295).

The spelling of 21230100083 in words is "twenty-one billion, two hundred thirty million, one hundred thousand, eighty-three".