20203133131220 has 96 divisors (see below), whose sum is σ = 48114495676800. Its totient is φ = 7064128710144.

The previous prime is 20203133131219. The next prime is 20203133131241. The reversal of 20203133131220 is 2213133130202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11315882 + ... + 12979038.

It is an arithmetic number, because the mean of its divisors is an integer number (501192663300).

Almost surely, 2^{20203133131220} is an apocalyptic number.

20203133131220 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 20203133131220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24057247838400).

20203133131220 is an abundant number, since it is smaller than the sum of its proper divisors (27911362545580).

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

20203133131220 is a wasteful number, since it uses less digits than its factorization.

20203133131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665657 (or 1665655 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20203133131220 its reverse (2213133130202), we get a palindrome (22416266261422).

The spelling of 20203133131220 in words is "twenty trillion, two hundred three billion, one hundred thirty-three million, one hundred thirty-one thousand, two hundred twenty".