20351380363 has 2 divisors, whose sum is σ = 20351380364. Its totient is φ = 20351380362.

The previous prime is 20351380349. The next prime is 20351380381. The reversal of 20351380363 is 36308315302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20351380363 - 2⁵ = 20351380331 is a prime.

It is not a weakly prime, because it can be changed into another prime (20351380463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175690181 + 10175690182.

It is an arithmetic number, because the mean of its divisors is an integer number (10175690182).

Almost surely, 2^20351380363 is an apocalyptic number.

20351380363 is a deficient number, since it is larger than the sum of its proper divisors (1).

20351380363 is an equidigital number, since it uses as much as digits as its factorization.

20351380363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 20351380363 its reverse (36308315302), we get a palindrome (56659695665).

The spelling of 20351380363 in words is "twenty billion, three hundred fifty-one million, three hundred eighty thousand, three hundred sixty-three".