20310955020 has 144 divisors (see below), whose sum is σ = 65383718400. Its totient is φ = 5085954048.

The previous prime is 20310955009. The next prime is 20310955031. The reversal of 20310955020 is 2055901302.

20310955020 is a `hidden beast` number, since 2 + 0 + 3 + 109 + 550 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20310955009) and next prime (20310955031).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1366549 + ... + 1381331.

It is an arithmetic number, because the mean of its divisors is an integer number (454053600).

Almost surely, 2^20310955020 is an apocalyptic number.

20310955020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20310955020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32691859200).

20310955020 is an abundant number, since it is smaller than the sum of its proper divisors (45072763380).

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

20310955020 is a wasteful number, since it uses less digits than its factorization.

20310955020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264 (or 15259 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 20310955020 in words is "twenty billion, three hundred ten million, nine hundred fifty-five thousand, twenty".