20308106108 has 24 divisors (see below), whose sum is σ = 36346060800. Its totient is φ = 9924121328.

The previous prime is 20308106083. The next prime is 20308106111. The reversal of 20308106108 is 80160180302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60053 + ... + 210291.

It is an arithmetic number, because the mean of its divisors is an integer number (1514419200).

Almost surely, 2^20308106108 is an apocalyptic number.

It is an amenable number.

20308106108 is a deficient number, since it is larger than the sum of its proper divisors (16037954692).

20308106108 is a wasteful number, since it uses less digits than its factorization.

20308106108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151009 (or 151007 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 20308106108 in words is "twenty billion, three hundred eight million, one hundred six thousand, one hundred eight".