101000002 has 4 divisors (see below), whose sum is σ = 151500006. Its totient is φ = 50500000.

The previous prime is 100999993. The next prime is 101000023. The reversal of 101000002 is 200000101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97792321 + 3207681 = 9889^2 + 1791^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100999955 and 101000000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25249999 + ... + 25250002.

Almost surely, 2^101000002 is an apocalyptic number.

101000002 is a deficient number, since it is larger than the sum of its proper divisors (50500004).

101000002 is an equidigital number, since it uses as much as digits as its factorization.

101000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50500003.

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 101000002 is about 10049.8757206246. The cubic root of 101000002 is about 465.7009538543.

Adding to 101000002 its reverse (200000101), we get a palindrome (301000103).

Subtracting 101000002 from its reverse (200000101), we obtain a palindrome (99000099).

The spelling of 101000002 in words is "one hundred one million, two", and thus it is an aban number.