100312001 has 16 divisors (see below), whose sum is σ = 110538240. Its totient is φ = 90668160.

The previous prime is 100311997. The next prime is 100312007. The reversal of 100312001 is 100213001.

It is a cyclic number.

It is not a de Polignac number, because 100312001 - 2² = 100311997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100312001.

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 15 ways as a sum of consecutive naturals, for example, 41831 + ... + 44163.

It is an arithmetic number, because the mean of its divisors is an integer number (6908640).

Almost surely, 2^100312001 is an apocalyptic number.

It is an amenable number.

100312001 is a deficient number, since it is larger than the sum of its proper divisors (10226239).

100312001 is a wasteful number, since it uses less digits than its factorization.

100312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 100312001 is about 10015.5879008673. The cubic root of 100312001 is about 464.6411089781.

Adding to 100312001 its reverse (100213001), we get a palindrome (200525002).

The spelling of 100312001 in words is "one hundred million, three hundred twelve thousand, one".