201000020101 has 4 divisors (see below), whose sum is σ = 201335580000. Its totient is φ = 200664460204.

The previous prime is 201000020099. The next prime is 201000020147. The reversal of 201000020101 is 101020000102.

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 a cyclic number.

It is not a de Polignac number, because 201000020101 - 2¹ = 201000020099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000020161) 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, 167779051 + ... + 167780248.

It is an arithmetic number, because the mean of its divisors is an integer number (50333895000).

Almost surely, 2^201000020101 is an apocalyptic number.

It is an amenable number.

201000020101 is a deficient number, since it is larger than the sum of its proper divisors (335559899).

201000020101 is an equidigital number, since it uses as much as digits as its factorization.

201000020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335559898.

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

Adding to 201000020101 its reverse (101020000102), we get a palindrome (302020020203).

The spelling of 201000020101 in words is "two hundred one billion, twenty thousand, one hundred one".