20850317531119 has 2 divisors, whose sum is σ = 20850317531120. Its totient is φ = 20850317531118.

The previous prime is 20850317531101. The next prime is 20850317531149. The reversal of 20850317531119 is 91113571305802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20850317531119 is a prime.

It is a super-2 number, since 2×20850317531119² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20850317531149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10425158765559 + 10425158765560.

It is an arithmetic number, because the mean of its divisors is an integer number (10425158765560).

Almost surely, 2^{20850317531119} is an apocalyptic number.

20850317531119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20850317531119 is an equidigital number, since it uses as much as digits as its factorization.

20850317531119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 20850317531119 in words is "twenty trillion, eight hundred fifty billion, three hundred seventeen million, five hundred thirty-one thousand, one hundred nineteen".