100520100 has 108 divisors (see below), whose sum is σ = 319969104. Its totient is φ = 26389440.

The previous prime is 100520081. The next prime is 100520107. The reversal of 100520100 is 1025001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100520107) 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, 59467 + ... + 61133.

Almost surely, 2^100520100 is an apocalyptic number.

100520100 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 100520100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159984552).

100520100 is an abundant number, since it is smaller than the sum of its proper divisors (219449004).

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

100520100 is a wasteful number, since it uses less digits than its factorization.

100520100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 100520100 is about 10025.9712746447. The cubic root of 100520100 is about 464.9621890865.

Adding to 100520100 its reverse (1025001), we get a palindrome (101545101).

The spelling of 100520100 in words is "one hundred million, five hundred twenty thousand, one hundred".