20202013500 has 96 divisors (see below), whose sum is σ = 58996461888. Its totient is φ = 5371801600.

The previous prime is 20202013493. The next prime is 20202013603. The reversal of 20202013500 is 531020202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20202013500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510424 + ... + 548576.

It is an arithmetic number, because the mean of its divisors is an integer number (614546478).

Almost surely, 2^20202013500 is an apocalyptic number.

20202013500 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 20202013500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29498230944).

20202013500 is an abundant number, since it is smaller than the sum of its proper divisors (38794448388).

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

20202013500 is a wasteful number, since it uses less digits than its factorization.

20202013500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38528 (or 38516 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 20202013500 its reverse (531020202), we get a palindrome (20733033702).

The spelling of 20202013500 in words is "twenty billion, two hundred two million, thirteen thousand, five hundred".