20054135113 has 2 divisors, whose sum is σ = 20054135114. Its totient is φ = 20054135112.

The previous prime is 20054135107. The next prime is 20054135201. The reversal of 20054135113 is 31153145002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17969938704 + 2084196409 = 134052^2 + 45653^2 .

It is a cyclic number.

It is not a de Polignac number, because 20054135113 - 2⁹ = 20054134601 is a prime.

It is not a weakly prime, because it can be changed into another prime (20054138113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10027067556 + 10027067557.

It is an arithmetic number, because the mean of its divisors is an integer number (10027067557).

Almost surely, 2^20054135113 is an apocalyptic number.

It is an amenable number.

20054135113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20054135113 is an equidigital number, since it uses as much as digits as its factorization.

20054135113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 20054135113 in words is "twenty billion, fifty-four million, one hundred thirty-five thousand, one hundred thirteen".