20850317531134 has 64 divisors (see below), whose sum is σ = 38900168294400. Its totient is φ = 8161643887488.

The previous prime is 20850317531119. The next prime is 20850317531149. The reversal of 20850317531134 is 43113571305802.

It is an interprime number because it is at equal distance from previous prime (20850317531119) and next prime (20850317531149).

It is a super-2 number, since 2×20850317531134² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5302627 + ... + 8355745.

It is an arithmetic number, because the mean of its divisors is an integer number (607815129600).

Almost surely, 2^{20850317531134} is an apocalyptic number.

20850317531134 is a deficient number, since it is larger than the sum of its proper divisors (18049850763266).

20850317531134 is a wasteful number, since it uses less digits than its factorization.

20850317531134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053537.

The product of its (nonzero) digits is 302400, while the sum is 43.

Adding to 20850317531134 its reverse (43113571305802), we get a palindrome (63963888836936).

The spelling of 20850317531134 in words is "twenty trillion, eight hundred fifty billion, three hundred seventeen million, five hundred thirty-one thousand, one hundred thirty-four".