16234438123 has 2 divisors, whose sum is σ = 16234438124. Its totient is φ = 16234438122.

The previous prime is 16234438117. The next prime is 16234438153. The reversal of 16234438123 is 32183443261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16234438123 - 2²⁹ = 15697567211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16234438153) 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, 8117219061 + 8117219062.

It is an arithmetic number, because the mean of its divisors is an integer number (8117219062).

Almost surely, 2^16234438123 is an apocalyptic number.

16234438123 is a deficient number, since it is larger than the sum of its proper divisors (1).

16234438123 is an equidigital number, since it uses as much as digits as its factorization.

16234438123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The spelling of 16234438123 in words is "sixteen billion, two hundred thirty-four million, four hundred thirty-eight thousand, one hundred twenty-three".