20034143500 has 96 divisors (see below), whose sum is σ = 50060529792. Its totient is φ = 6861254400.

The previous prime is 20034143473. The next prime is 20034143501. The reversal of 20034143500 is 534143002.

It is not an unprimeable number, because it can be changed into a prime (20034143501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3822882 + ... + 3828118.

It is an arithmetic number, because the mean of its divisors is an integer number (521463852).

Almost surely, 2^20034143500 is an apocalyptic number.

20034143500 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 20034143500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25030264896).

20034143500 is an abundant number, since it is smaller than the sum of its proper divisors (30026386292).

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

20034143500 is a wasteful number, since it uses less digits than its factorization.

20034143500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20034143500 its reverse (534143002), we get a palindrome (20568286502).

The spelling of 20034143500 in words is "twenty billion, thirty-four million, one hundred forty-three thousand, five hundred".