20140243100 has 18 divisors (see below), whose sum is σ = 43704327744. Its totient is φ = 8056097200.

The previous prime is 20140243099. The next prime is 20140243129. The reversal of 20140243100 is 134204102.

It is a super-2 number, since 2×20140243100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100701116 + ... + 100701315.

It is an arithmetic number, because the mean of its divisors is an integer number (2428018208).

Almost surely, 2^20140243100 is an apocalyptic number.

20140243100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20140243100 is an abundant number, since it is smaller than the sum of its proper divisors (23564084644).

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

20140243100 is a wasteful number, since it uses less digits than its factorization.

20140243100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201402445 (or 201402438 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20140243100 its reverse (134204102), we get a palindrome (20274447202).

The spelling of 20140243100 in words is "twenty billion, one hundred forty million, two hundred forty-three thousand, one hundred".