20034313523217 has 16 divisors (see below), whose sum is σ = 33920530833280. Its totient is φ = 11448179156016.

The previous prime is 20034313523171. The next prime is 20034313523251. The reversal of 20034313523217 is 71232531343002.

20034313523217 is a `hidden beast` number, since 2 + 0 + 0 + 3 + 431 + 3 + 5 + 2 + 3 + 217 = 666.

It is not a de Polignac number, because 20034313523217 - 2⁷ = 20034313523089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20034313523117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53000829238 + ... + 53000829615.

It is an arithmetic number, because the mean of its divisors is an integer number (2120033177080).

Almost surely, 2^{20034313523217} is an apocalyptic number.

20034313523217 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20034313523217 is a deficient number, since it is larger than the sum of its proper divisors (13886217310063).

20034313523217 is a wasteful number, since it uses less digits than its factorization.

20034313523217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106001658869 (or 106001658863 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

Adding to 20034313523217 its reverse (71232531343002), we get a palindrome (91266844866219).

The spelling of 20034313523217 in words is "twenty trillion, thirty-four billion, three hundred thirteen million, five hundred twenty-three thousand, two hundred seventeen".