16113981113 has 2 divisors, whose sum is σ = 16113981114. Its totient is φ = 16113981112.

The previous prime is 16113981083. The next prime is 16113981119. The reversal of 16113981113 is 31118931161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10426860544 + 5687120569 = 102112^2 + 75413^2 .

It is a cyclic number.

It is not a de Polignac number, because 16113981113 - 2⁶ = 16113981049 is a prime.

It is not a weakly prime, because it can be changed into another prime (16113981119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8056990556 + 8056990557.

It is an arithmetic number, because the mean of its divisors is an integer number (8056990557).

Almost surely, 2^16113981113 is an apocalyptic number.

It is an amenable number.

16113981113 is a deficient number, since it is larger than the sum of its proper divisors (1).

16113981113 is an equidigital number, since it uses as much as digits as its factorization.

16113981113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 35.

The spelling of 16113981113 in words is "sixteen billion, one hundred thirteen million, nine hundred eighty-one thousand, one hundred thirteen".