20154146113 has 2 divisors, whose sum is σ = 20154146114. Its totient is φ = 20154146112.

The previous prime is 20154146081. The next prime is 20154146141. The reversal of 20154146113 is 31164145102.

It is an a-pointer prime, because the next prime (20154146141) can be obtained adding 20154146113 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19497095424 + 657050689 = 139632^2 + 25633^2 .

It is a cyclic number.

It is not a de Polignac number, because 20154146113 - 2⁵ = 20154146081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20154146143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077073056 + 10077073057.

It is an arithmetic number, because the mean of its divisors is an integer number (10077073057).

Almost surely, 2^20154146113 is an apocalyptic number.

It is an amenable number.

20154146113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20154146113 is an equidigital number, since it uses as much as digits as its factorization.

20154146113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 20154146113 in words is "twenty billion, one hundred fifty-four million, one hundred forty-six thousand, one hundred thirteen".