20135400001 has 2 divisors, whose sum is σ = 20135400002. Its totient is φ = 20135400000.

The previous prime is 20135399989. The next prime is 20135400007. The reversal of 20135400001 is 10000453102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17238377025 + 2897022976 = 131295^2 + 53824^2 .

It is a cyclic number.

It is not a de Polignac number, because 20135400001 - 2⁵ = 20135399969 is a prime.

It is not a weakly prime, because it can be changed into another prime (20135400007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067700000 + 10067700001.

It is an arithmetic number, because the mean of its divisors is an integer number (10067700001).

Almost surely, 2^20135400001 is an apocalyptic number.

It is an amenable number.

20135400001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20135400001 is an equidigital number, since it uses as much as digits as its factorization.

20135400001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 20135400001 its reverse (10000453102), we get a palindrome (30135853103).

The spelling of 20135400001 in words is "twenty billion, one hundred thirty-five million, four hundred thousand, one".