16123213 has 2 divisors, whose sum is σ = 16123214. Its totient is φ = 16123212.

The previous prime is 16123201. The next prime is 16123241. The reversal of 16123213 is 31232161.

16123213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16104169 + 19044 = 4013^2 + 138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16123213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16123273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8061606 + 8061607.

It is an arithmetic number, because the mean of its divisors is an integer number (8061607).

Almost surely, 2^16123213 is an apocalyptic number.

It is an amenable number.

16123213 is a deficient number, since it is larger than the sum of its proper divisors (1).

16123213 is an equidigital number, since it uses as much as digits as its factorization.

16123213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 16123213 is about 4015.3720873663. The cubic root of 16123213 is about 252.6293843978.

Adding to 16123213 its reverse (31232161), we get a palindrome (47355374).

The spelling of 16123213 in words is "sixteen million, one hundred twenty-three thousand, two hundred thirteen".