20013201543000 has 384 divisors, whose sum is σ = 67552262668800. Its totient is φ = 4919299776000.

The previous prime is 20013201542987. The next prime is 20013201543061. The reversal of 20013201543000 is 34510231002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77904765 + ... + 78161235.

It is an arithmetic number, because the mean of its divisors is an integer number (175917350700).

Almost surely, 2^{20013201543000} is an apocalyptic number.

20013201543000 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 20013201543000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33776131334400).

20013201543000 is an abundant number, since it is smaller than the sum of its proper divisors (47539061125800).

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

20013201543000 is a wasteful number, since it uses less digits than its factorization.

20013201543000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256588 (or 256537 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20013201543000 its reverse (34510231002), we get a palindrome (20047711774002).

The spelling of 20013201543000 in words is "twenty trillion, thirteen billion, two hundred one million, five hundred forty-three thousand".