100810100 has 18 divisors (see below), whose sum is σ = 218758134. Its totient is φ = 40324000.

The previous prime is 100810091. The next prime is 100810123. The reversal of 100810100 is 1018001.

It can be written as a sum of positive squares in 3 ways, for example, as 88804 + 100721296 = 298^2 + 10036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503951 + ... + 504150.

Almost surely, 2^100810100 is an apocalyptic number.

100810100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100810100 is an abundant number, since it is smaller than the sum of its proper divisors (117948034).

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

100810100 is a wasteful number, since it uses less digits than its factorization.

100810100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008115 (or 1008108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 100810100 is about 10040.4232978495. The cubic root of 100810100 is about 465.4088976628.

Adding to 100810100 its reverse (1018001), we get a palindrome (101828101).

The spelling of 100810100 in words is "one hundred million, eight hundred ten thousand, one hundred".