100343104520 has 128 divisors (see below), whose sum is σ = 242760499200. Its totient is φ = 37193035776.

The previous prime is 100343104517. The next prime is 100343104523. The reversal of 100343104520 is 25401343001.

It is an interprime number because it is at equal distance from previous prime (100343104517) and next prime (100343104523).

It is not an unprimeable number, because it can be changed into a prime (100343104523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20572322 + ... + 20577198.

It is an arithmetic number, because the mean of its divisors is an integer number (1896566400).

Almost surely, 2^100343104520 is an apocalyptic number.

100343104520 is a gapful number since it is divisible by the number (10) 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 100343104520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121380249600).

100343104520 is an abundant number, since it is smaller than the sum of its proper divisors (142417394680).

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

100343104520 is a wasteful number, since it uses less digits than its factorization.

100343104520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367 (or 5363 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 100343104520 its reverse (25401343001), we get a palindrome (125744447521).

The spelling of 100343104520 in words is "one hundred billion, three hundred forty-three million, one hundred four thousand, five hundred twenty".