1000000101 has 4 divisors (see below), whose sum is σ = 1333333472. Its totient is φ = 666666732.

The previous prime is 1000000097. The next prime is 1000000103. The reversal of 1000000101 is 1010000001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1000000101 - 2² = 1000000097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (3), and also a Moran number because the ratio is a prime number: 333333367 = 1000000101 / (1 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 1).

It is a Duffinian number.

1000000101 is a modest number, since divided by 101 gives 10 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166666681 + ... + 166666686.

It is an arithmetic number, because the mean of its divisors is an integer number (333333368).

Almost surely, 2^1000000101 is an apocalyptic number.

It is an amenable number.

1000000101 is a deficient number, since it is larger than the sum of its proper divisors (333333371).

1000000101 is an equidigital number, since it uses as much as digits as its factorization.

1000000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333333370.

The product of its (nonzero) digits is 1, while the sum is 3.

The square root of 1000000101 is about 31622.7781986340. The cubic root of 1000000101 is about 1000.0000336667. Note that the first 4 decimals are identical.

Adding to 1000000101 its reverse (1010000001), we get a palindrome (2010000102).

The spelling of 1000000101 in words is "one billion, one hundred one", and thus it is an aban number.