100202018 has 16 divisors (see below), whose sum is σ = 177698880. Its totient is φ = 41462736.

The previous prime is 100202017. The next prime is 100202027. The reversal of 100202018 is 810202001.

It is a super-2 number, since 2×100202018² = 20080888822544648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 100201993 and 100202011.

It is not an unprimeable number, because it can be changed into a prime (100202017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122996 + ... + 123807.

It is an arithmetic number, because the mean of its divisors is an integer number (11106180).

Almost surely, 2^100202018 is an apocalyptic number.

100202018 is a deficient number, since it is larger than the sum of its proper divisors (77496862).

100202018 is a wasteful number, since it uses less digits than its factorization.

100202018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246841.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 100202018 is about 10010.0958037373. The cubic root of 100202018 is about 464.4712346180.

Adding to 100202018 its reverse (810202001), we get a palindrome (910404019).

The spelling of 100202018 in words is "one hundred million, two hundred two thousand, eighteen".