20142113420 has 96 divisors (see below), whose sum is σ = 49804324416. Its totient is φ = 6745881600.

The previous prime is 20142113413. The next prime is 20142113429. The reversal of 20142113420 is 2431124102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20142113392 and 20142113401.

It is not an unprimeable number, because it can be changed into a prime (20142113429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1310822 + ... + 1326098.

It is an arithmetic number, because the mean of its divisors is an integer number (518795046).

Almost surely, 2^20142113420 is an apocalyptic number.

20142113420 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 20142113420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24902162208).

20142113420 is an abundant number, since it is smaller than the sum of its proper divisors (29662210996).

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

20142113420 is a wasteful number, since it uses less digits than its factorization.

20142113420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15771 (or 15769 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20142113420 its reverse (2431124102), we get a palindrome (22573237522).

The spelling of 20142113420 in words is "twenty billion, one hundred forty-two million, one hundred thirteen thousand, four hundred twenty".