20734031206 has 12 divisors (see below), whose sum is σ = 36178768908. Its totient is φ = 8886013332.

The previous prime is 20734031173. The next prime is 20734031221. The reversal of 20734031206 is 60213043702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105785776 + ... + 105785971.

It is an arithmetic number, because the mean of its divisors is an integer number (3014897409).

Almost surely, 2^20734031206 is an apocalyptic number.

20734031206 is a deficient number, since it is larger than the sum of its proper divisors (15444737702).

20734031206 is a wasteful number, since it uses less digits than its factorization.

20734031206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211571763 (or 211571756 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 20734031206 its reverse (60213043702), we get a palindrome (80947074908).

The spelling of 20734031206 in words is "twenty billion, seven hundred thirty-four million, thirty-one thousand, two hundred six".