21230030003101 has 4 divisors (see below), whose sum is σ = 21321146011932. Its totient is φ = 21138913994272.

The previous prime is 21230030003053. The next prime is 21230030003111. The reversal of 21230030003101 is 10130003003212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15286137243001 + 5943892760100 = 3909749^2 + 2438010^2 .

It is a cyclic number.

It is not a de Polignac number, because 21230030003101 - 2³⁹ = 20680274189213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230030003111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45558004066 + ... + 45558004531.

It is an arithmetic number, because the mean of its divisors is an integer number (5330286502983).

Almost surely, 2^{21230030003101} is an apocalyptic number.

It is an amenable number.

21230030003101 is a deficient number, since it is larger than the sum of its proper divisors (91116008831).

21230030003101 is an equidigital number, since it uses as much as digits as its factorization.

21230030003101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91116008830.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21230030003101 its reverse (10130003003212), we get a palindrome (31360033006313).

The spelling of 21230030003101 in words is "twenty-one trillion, two hundred thirty billion, thirty million, three thousand, one hundred one".