20344653131022 has 72 divisors (see below), whose sum is σ = 48462339475368. Its totient is φ = 6163687553760.

The previous prime is 20344653131021. The next prime is 20344653131027. The reversal of 20344653131022 is 22013135644302.

20344653131022 is a `hidden beast` number, since 2 + 0 + 34 + 46 + 531 + 31 + 0 + 22 = 666.

It is a super-2 number, since 2×20344653131022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344653131021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8876208 + ... + 10930524.

It is an arithmetic number, because the mean of its divisors is an integer number (673088048269).

Almost surely, 2^{20344653131022} is an apocalyptic number.

20344653131022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20344653131022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24231169737684).

20344653131022 is an abundant number, since it is smaller than the sum of its proper divisors (28117686344346).

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

20344653131022 is a wasteful number, since it uses less digits than its factorization.

20344653131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058894 (or 2058880 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 20344653131022 its reverse (22013135644302), we get a palindrome (42357788775324).

The spelling of 20344653131022 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty-three million, one hundred thirty-one thousand, twenty-two".