20371108128 has 96 divisors (see below), whose sum is σ = 61743556224. Its totient is φ = 5760294912.

The previous prime is 20371108127. The next prime is 20371108129. The reversal of 20371108128 is 82180117302.

It is an interprime number because it is at equal distance from previous prime (20371108127) and next prime (20371108129).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (20371108127) 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, 91075 + ... + 221442.

It is an arithmetic number, because the mean of its divisors is an integer number (643162044).

Almost surely, 2^20371108128 is an apocalyptic number.

20371108128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20371108128 is an abundant number, since it is smaller than the sum of its proper divisors (41372448096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20371108128 is a wasteful number, since it uses less digits than its factorization.

20371108128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312634 (or 312626 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The spelling of 20371108128 in words is "twenty billion, three hundred seventy-one million, one hundred eight thousand, one hundred twenty-eight".