100500012 has 36 divisors (see below), whose sum is σ = 254346456. Its totient is φ = 33459840.

The previous prime is 100500011. The next prime is 100500019. The reversal of 100500012 is 210005001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 100499967 and 100500003.

It is not an unprimeable number, because it can be changed into a prime (100500011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55668 + ... + 57444.

Almost surely, 2^100500012 is an apocalyptic number.

100500012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100500012 is an abundant number, since it is smaller than the sum of its proper divisors (153846444).

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

100500012 is a wasteful number, since it uses less digits than its factorization.

100500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358 (or 3353 counting only the distinct ones).

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

The square root of 100500012 is about 10024.9694263873. The cubic root of 100500012 is about 464.9312142443.

Adding to 100500012 its reverse (210005001), we get a palindrome (310505013).

The spelling of 100500012 in words is "one hundred million, five hundred thousand, twelve".