20140323100 has 72 divisors (see below), whose sum is σ = 45332098560. Its totient is φ = 7757594880.

The previous prime is 20140323059. The next prime is 20140323139. The reversal of 20140323100 is 132304102.

It is a happy number.

It is a super-2 number, since 2×20140323100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1101634 + ... + 1119766.

It is an arithmetic number, because the mean of its divisors is an integer number (629612480).

Almost surely, 2^20140323100 is an apocalyptic number.

20140323100 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 20140323100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22666049280).

20140323100 is an abundant number, since it is smaller than the sum of its proper divisors (25191775460).

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

20140323100 is a wasteful number, since it uses less digits than its factorization.

20140323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18559 (or 18552 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20140323100 its reverse (132304102), we get a palindrome (20272627202).

The spelling of 20140323100 in words is "twenty billion, one hundred forty million, three hundred twenty-three thousand, one hundred".