142211503205420 has 96 divisors (see below), whose sum is σ = 342996275623680. Its totient is φ = 48983577327360.

The previous prime is 142211503205371. The next prime is 142211503205459. The reversal of 142211503205420 is 24502305112241.

142211503205420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142211503205420² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23047439 + ... + 28558841.

It is an arithmetic number, because the mean of its divisors is an integer number (3572877871080).

Almost surely, 2^{142211503205420} is an apocalyptic number.

142211503205420 is a gapful number since it is divisible by the number (10) 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 142211503205420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171498137811840).

142211503205420 is an abundant number, since it is smaller than the sum of its proper divisors (200784772418260).

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

142211503205420 is a wasteful number, since it uses less digits than its factorization.

142211503205420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517615 (or 5517613 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 142211503205420 its reverse (24502305112241), we get a palindrome (166713808317661).

The spelling of 142211503205420 in words is "one hundred forty-two trillion, two hundred eleven billion, five hundred three million, two hundred five thousand, four hundred twenty".