100312002 has 48 divisors (see below), whose sum is σ = 263008512. Its totient is φ = 26974080.

The previous prime is 100311997. The next prime is 100312007. The reversal of 100312002 is 200213001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100311997) and next prime (100312007).

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 (100312007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21274 + ... + 25557.

It is an arithmetic number, because the mean of its divisors is an integer number (5479344).

Almost surely, 2^100312002 is an apocalyptic number.

100312002 is an abundant number, since it is smaller than the sum of its proper divisors (162696510).

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

100312002 is a wasteful number, since it uses less digits than its factorization.

100312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46863 (or 46860 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100312002 is about 10015.5879507895. The cubic root of 100312002 is about 464.6411105221.

Adding to 100312002 its reverse (200213001), we get a palindrome (300525003).

Subtracting 100312002 from its reverse (200213001), we obtain a palindrome (99900999).

The spelling of 100312002 in words is "one hundred million, three hundred twelve thousand, two".