101900201 has 4 divisors (see below), whose sum is σ = 109738692. Its totient is φ = 94061712.

The previous prime is 101900167. The next prime is 101900203. The reversal of 101900201 is 102009101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102009101 = 599 ⋅170299.

It can be written as a sum of positive squares in 2 ways, for example, as 64384576 + 37515625 = 8024^2 + 6125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101900201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101900203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3919226 + ... + 3919251.

It is an arithmetic number, because the mean of its divisors is an integer number (27434673).

Almost surely, 2^101900201 is an apocalyptic number.

It is an amenable number.

101900201 is a deficient number, since it is larger than the sum of its proper divisors (7838491).

101900201 is an equidigital number, since it uses as much as digits as its factorization.

101900201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838490.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 101900201 is about 10094.5629424953. The cubic root of 101900201 is about 467.0804395366.

Adding to 101900201 its reverse (102009101), we get a palindrome (203909302).

Subtracting 101900201 from its reverse (102009101), we obtain a square (108900 = 330²).

The spelling of 101900201 in words is "one hundred one million, nine hundred thousand, two hundred one".