20203120140220 has 96 divisors (see below), whose sum is σ = 45242084724480. Its totient is φ = 7563687828480.

The previous prime is 20203120140211. The next prime is 20203120140233. The reversal of 20203120140220 is 2204102130202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4078702 + ... + 7552618.

It is an arithmetic number, because the mean of its divisors is an integer number (471271715880).

Almost surely, 2^{20203120140220} is an apocalyptic number.

20203120140220 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 20203120140220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22621042362240).

20203120140220 is an abundant number, since it is smaller than the sum of its proper divisors (25038964584260).

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

20203120140220 is a wasteful number, since it uses less digits than its factorization.

20203120140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474263 (or 3474261 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20203120140220 its reverse (2204102130202), we get a palindrome (22407222270422).

The spelling of 20203120140220 in words is "twenty trillion, two hundred three billion, one hundred twenty million, one hundred forty thousand, two hundred twenty".