101000020100002 has 4 divisors (see below), whose sum is σ = 151500030150006. Its totient is φ = 50500010050000.

The previous prime is 101000020099969. The next prime is 101000020100009. The reversal of 101000020100002 is 200001020000101.

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., 75339118995721 + 25660901104281 = 8679811^2 + 5065659^2 .

It is not an unprimeable number, because it can be changed into a prime (101000020100009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25250005024999 + ... + 25250005025002.

Almost surely, 2^{101000020100002} is an apocalyptic number.

101000020100002 is a deficient number, since it is larger than the sum of its proper divisors (50500010050004).

101000020100002 is an equidigital number, since it uses as much as digits as its factorization.

101000020100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50500010050003.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 101000020100002 its reverse (200001020000101), we get a palindrome (301001040100103).

Subtracting 101000020100002 from its reverse (200001020000101), we obtain a palindrome (99000999900099).

The spelling of 101000020100002 in words is "one hundred one trillion, twenty million, one hundred thousand, two".