20710388203137 has 20 divisors (see below), whose sum is σ = 31000750116336. Its totient is φ = 13778805431160.

The previous prime is 20710388203103. The next prime is 20710388203187. The reversal of 20710388203137 is 73130288301702.

It is a happy number.

20710388203137 is a `hidden beast` number, since 20 + 7 + 10 + 388 + 203 + 1 + 37 = 666.

It is not a de Polignac number, because 20710388203137 - 2¹⁵ = 20710388170369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20710388203092 and 20710388203101.

It is not an unprimeable number, because it can be changed into a prime (20710388203187) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 260330703 + ... + 260410244.

Almost surely, 2^{20710388203137} is an apocalyptic number.

20710388203137 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20710388203137 is a deficient number, since it is larger than the sum of its proper divisors (10290361913199).

20710388203137 is an equidigital number, since it uses as much as digits as its factorization.

20710388203137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520741450 (or 520741441 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 20710388203137 in words is "twenty trillion, seven hundred ten billion, three hundred eighty-eight million, two hundred three thousand, one hundred thirty-seven".