34213100021 has 2 divisors, whose sum is σ = 34213100022. Its totient is φ = 34213100020.

The previous prime is 34213100003. The next prime is 34213100041. The reversal of 34213100021 is 12000131243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20102986225 + 14110113796 = 141785^2 + 118786^2 .

It is a cyclic number.

It is not a de Polignac number, because 34213100021 - 2¹⁴ = 34213083637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34213100041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17106550010 + 17106550011.

It is an arithmetic number, because the mean of its divisors is an integer number (17106550011).

Almost surely, 2^34213100021 is an apocalyptic number.

It is an amenable number.

34213100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34213100021 is an equidigital number, since it uses as much as digits as its factorization.

34213100021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 34213100021 its reverse (12000131243), we get a palindrome (46213231264).

The spelling of 34213100021 in words is "thirty-four billion, two hundred thirteen million, one hundred thousand, twenty-one".