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20201101201 = 25437943807
BaseRepresentation
bin10010110100000101…
…000101011110010001
31221010211221021020101
4102310011011132101
5312332440214301
613140311412401
71313413345531
oct226405053621
957124837211
1020201101201
118626aa4366
123ab9384101
131b9c259228
14d98cb34c1
157d3741701
hex4b4145791

20201101201 has 4 divisors (see below), whose sum is σ = 20209047552. Its totient is φ = 20193154852.

The previous prime is 20201101187. The next prime is 20201101229. The reversal of 20201101201 is 10210110202.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10210110202 = 25105055101.

It is a cyclic number.

It is not a de Polignac number, because 20201101201 - 213 = 20201093009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201101301) 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, 3969361 + ... + 3974446.

It is an arithmetic number, because the mean of its divisors is an integer number (5052261888).

Almost surely, 220201101201 is an apocalyptic number.

It is an amenable number.

20201101201 is a deficient number, since it is larger than the sum of its proper divisors (7946351).

20201101201 is an equidigital number, since it uses as much as digits as its factorization.

20201101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7946350.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20201101201 its reverse (10210110202), we get a palindrome (30411211403).

Subtracting from 20201101201 its reverse (10210110202), we obtain a palindrome (9990990999).

The spelling of 20201101201 in words is "twenty billion, two hundred one million, one hundred one thousand, two hundred one".

Divisors: 1 2543 7943807 20201101201