20102331023220 has 192 divisors, whose sum is σ = 56954150701056. Its totient is φ = 5297492928000.

The previous prime is 20102331023209. The next prime is 20102331023279. The reversal of 20102331023220 is 2232013320102.

It is a happy number.

It is a super-2 number, since 2×20102331023220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1415949162 + ... + 1415963358.

It is an arithmetic number, because the mean of its divisors is an integer number (296636201568).

Almost surely, 2^{20102331023220} is an apocalyptic number.

20102331023220 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 20102331023220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28477075350528).

20102331023220 is an abundant number, since it is smaller than the sum of its proper divisors (36851819677836).

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

20102331023220 is a wasteful number, since it uses less digits than its factorization.

20102331023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15190 (or 15188 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20102331023220 its reverse (2232013320102), we get a palindrome (22334344343322).

The spelling of 20102331023220 in words is "twenty trillion, one hundred two billion, three hundred thirty-one million, twenty-three thousand, two hundred twenty".