20034331020 has 480 divisors, whose sum is σ = 74411701056. Its totient is φ = 4456857600.

The previous prime is 20034331007. The next prime is 20034331049. The reversal of 20034331020 is 2013343002.

20034331020 is a `hidden beast` number, since 200 + 3 + 433 + 10 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20034330984 and 20034331002.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 12419734 + ... + 12421346.

Almost surely, 2^20034331020 is an apocalyptic number.

20034331020 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 20034331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37205850528).

20034331020 is an abundant number, since it is smaller than the sum of its proper divisors (54377370036).

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

20034331020 is a wasteful number, since it uses less digits than its factorization.

20034331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20034331020 its reverse (2013343002), we get a palindrome (22047674022).

The spelling of 20034331020 in words is "twenty billion, thirty-four million, three hundred thirty-one thousand, twenty".