201120645101 has 4 divisors (see below), whose sum is σ = 201128044032. Its totient is φ = 201113246172.

The previous prime is 201120645001. The next prime is 201120645113. The reversal of 201120645101 is 101546021102.

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 201120645101 - 2¹⁰ = 201120644077 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 (201120645151) 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, 3658541 + ... + 3713106.

It is an arithmetic number, because the mean of its divisors is an integer number (50282011008).

Almost surely, 2^201120645101 is an apocalyptic number.

It is an amenable number.

201120645101 is a deficient number, since it is larger than the sum of its proper divisors (7398931).

201120645101 is an equidigital number, since it uses as much as digits as its factorization.

201120645101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398930.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 201120645101 its reverse (101546021102), we get a palindrome (302666666203).

The spelling of 201120645101 in words is "two hundred one billion, one hundred twenty million, six hundred forty-five thousand, one hundred one".