21031230330001 has 2 divisors, whose sum is σ = 21031230330002. Its totient is φ = 21031230330000.

The previous prime is 21031230329969. The next prime is 21031230330053. The reversal of 21031230330001 is 10003303213012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20925354931776 + 105875398225 = 4574424^2 + 325385^2 .

It is a cyclic number.

It is not a de Polignac number, because 21031230330001 - 2⁵ = 21031230329969 is a prime.

It is not a weakly prime, because it can be changed into another prime (21031230330301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515615165000 + 10515615165001.

It is an arithmetic number, because the mean of its divisors is an integer number (10515615165001).

Almost surely, 2^{21031230330001} is an apocalyptic number.

It is an amenable number.

21031230330001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21031230330001 is an equidigital number, since it uses as much as digits as its factorization.

21031230330001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21031230330001 its reverse (10003303213012), we get a palindrome (31034533543013).

The spelling of 21031230330001 in words is "twenty-one trillion, thirty-one billion, two hundred thirty million, three hundred thirty thousand, one".