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102311220301 = 173591394337
BaseRepresentation
bin101111101001000111…
…0010101010001001101
3100210002020121111110121
41133102032111101031
53134013133022201
6115000124304541
710251240011053
oct1372216252115
9323066544417
10102311220301
113a432020124
12179b39a2151
1398565b2a14
144d47db01d3
1529dc0c59a1
hex17d239544d

102311220301 has 4 divisors (see below), whose sum is σ = 102902614812. Its totient is φ = 101719825792.

The previous prime is 102311220283. The next prime is 102311220317. The reversal of 102311220301 is 103022113201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103022113201 = 714717444743.

It can be written as a sum of positive squares in 2 ways, for example, as 90315275625 + 11995944676 = 300525^2 + 109526^2 .

It is a cyclic number.

It is not a de Polignac number, because 102311220301 - 25 = 102311220269 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 (102311220371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295696996 + ... + 295697341.

It is an arithmetic number, because the mean of its divisors is an integer number (25725653703).

Almost surely, 2102311220301 is an apocalyptic number.

It is an amenable number.

102311220301 is a deficient number, since it is larger than the sum of its proper divisors (591394511).

102311220301 is an equidigital number, since it uses as much as digits as its factorization.

102311220301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591394510.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102311220301 its reverse (103022113201), we get a palindrome (205333333502).

The spelling of 102311220301 in words is "one hundred two billion, three hundred eleven million, two hundred twenty thousand, three hundred one".

Divisors: 1 173 591394337 102311220301