20353401053 has 2 divisors, whose sum is σ = 20353401054. Its totient is φ = 20353401052.

The previous prime is 20353400981. The next prime is 20353401073. The reversal of 20353401053 is 35010435302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16044528889 + 4308872164 = 126667^2 + 65642^2 .

It is a cyclic number.

It is not a de Polignac number, because 20353401053 - 2⁸ = 20353400797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20353401073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176700526 + 10176700527.

It is an arithmetic number, because the mean of its divisors is an integer number (10176700527).

Almost surely, 2^20353401053 is an apocalyptic number.

It is an amenable number.

20353401053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353401053 is an equidigital number, since it uses as much as digits as its factorization.

20353401053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 20353401053 its reverse (35010435302), we get a palindrome (55363836355).

The spelling of 20353401053 in words is "twenty billion, three hundred fifty-three million, four hundred one thousand, fifty-three".