20031334242220 has 48 divisors (see below), whose sum is σ = 48075502644288. Its totient is φ = 6867843102720.

The previous prime is 20031334242217. The next prime is 20031334242233. The reversal of 20031334242220 is 2224243313002.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28878184 + ... + 29563696.

It is an arithmetic number, because the mean of its divisors is an integer number (1001572971756).

Almost surely, 2^{20031334242220} is an apocalyptic number.

20031334242220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031334242220 is an abundant number, since it is smaller than the sum of its proper divisors (28044168402068).

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

20031334242220 is a wasteful number, since it uses less digits than its factorization.

20031334242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894250 (or 894248 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20031334242220 its reverse (2224243313002), we get a palindrome (22255577555222).

The spelling of 20031334242220 in words is "twenty trillion, thirty-one billion, three hundred thirty-four million, two hundred forty-two thousand, two hundred twenty".