16234036621213 has 2 divisors, whose sum is σ = 16234036621214. Its totient is φ = 16234036621212.

The previous prime is 16234036621157. The next prime is 16234036621217. The reversal of 16234036621213 is 31212663043261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15657746118169 + 576290503044 = 3956987^2 + 759138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16234036621213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16234036621217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8117018310606 + 8117018310607.

It is an arithmetic number, because the mean of its divisors is an integer number (8117018310607).

Almost surely, 2^{16234036621213} is an apocalyptic number.

It is an amenable number.

16234036621213 is a deficient number, since it is larger than the sum of its proper divisors (1).

16234036621213 is an equidigital number, since it uses as much as digits as its factorization.

16234036621213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

Adding to 16234036621213 its reverse (31212663043261), we get a palindrome (47446699664474).

The spelling of 16234036621213 in words is "sixteen trillion, two hundred thirty-four billion, thirty-six million, six hundred twenty-one thousand, two hundred thirteen".