20734535020100 has 144 divisors (see below), whose sum is σ = 49367184048000. Its totient is φ = 7496396928000.

The previous prime is 20734535020051. The next prime is 20734535020141. The reversal of 20734535020100 is 102053543702.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1074931256 + ... + 1074950544.

It is an arithmetic number, because the mean of its divisors is an integer number (342827667000).

Almost surely, 2^{20734535020100} is an apocalyptic number.

20734535020100 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 20734535020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24683592024000).

20734535020100 is an abundant number, since it is smaller than the sum of its proper divisors (28632649027900).

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

20734535020100 is a wasteful number, since it uses less digits than its factorization.

20734535020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24894 (or 24887 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

Adding to 20734535020100 its reverse (102053543702), we get a palindrome (20836588563802).

The spelling of 20734535020100 in words is "twenty trillion, seven hundred thirty-four billion, five hundred thirty-five million, twenty thousand, one hundred".