20353335313 has 2 divisors, whose sum is σ = 20353335314. Its totient is φ = 20353335312.

The previous prime is 20353335307. The next prime is 20353335377. The reversal of 20353335313 is 31353335302.

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., 10664279824 + 9689055489 = 103268^2 + 98433^2 .

It is a cyclic number.

It is not a de Polignac number, because 20353335313 - 2¹³ = 20353327121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20353335113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176667656 + 10176667657.

It is an arithmetic number, because the mean of its divisors is an integer number (10176667657).

Almost surely, 2^20353335313 is an apocalyptic number.

It is an amenable number.

20353335313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353335313 is an equidigital number, since it uses as much as digits as its factorization.

20353335313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 31.

The spelling of 20353335313 in words is "twenty billion, three hundred fifty-three million, three hundred thirty-five thousand, three hundred thirteen".