20350104311320 has 128 divisors (see below), whose sum is σ = 53221094530560. Its totient is φ = 6859206881280.

The previous prime is 20350104311309. The next prime is 20350104311387. The reversal of 20350104311320 is 2311340105302.

It is a happy number.

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, 1332232 + ... + 6517288.

It is an arithmetic number, because the mean of its divisors is an integer number (415789801020).

Almost surely, 2^{20350104311320} is an apocalyptic number.

20350104311320 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 20350104311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26610547265280).

20350104311320 is an abundant number, since it is smaller than the sum of its proper divisors (32870990219240).

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

20350104311320 is a wasteful number, since it uses less digits than its factorization.

20350104311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185313 (or 5185309 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20350104311320 its reverse (2311340105302), we get a palindrome (22661444416622).

The spelling of 20350104311320 in words is "twenty trillion, three hundred fifty billion, one hundred four million, three hundred eleven thousand, three hundred twenty".