16021112123 has 2 divisors, whose sum is σ = 16021112124. Its totient is φ = 16021112122.

The previous prime is 16021112119. The next prime is 16021112143. The reversal of 16021112123 is 32121112061.

It is an a-pointer prime, because the next prime (16021112143) can be obtained adding 16021112123 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16021112123 - 2² = 16021112119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16021112095 and 16021112104.

It is not a weakly prime, because it can be changed into another prime (16021112143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8010556061 + 8010556062.

It is an arithmetic number, because the mean of its divisors is an integer number (8010556062).

Almost surely, 2^16021112123 is an apocalyptic number.

16021112123 is a deficient number, since it is larger than the sum of its proper divisors (1).

16021112123 is an equidigital number, since it uses as much as digits as its factorization.

16021112123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 16021112123 its reverse (32121112061), we get a palindrome (48142224184).

The spelling of 16021112123 in words is "sixteen billion, twenty-one million, one hundred twelve thousand, one hundred twenty-three".