102255201305 has 4 divisors (see below), whose sum is σ = 122706241572. Its totient is φ = 81804161040.

The previous prime is 102255201299. The next prime is 102255201371. The reversal of 102255201305 is 503102552201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70937528281 + 31317673024 = 266341^2 + 176968^2 .

It is not a de Polignac number, because 102255201305 - 2⁶ = 102255201241 is a prime.

It is a super-2 number, since 2×102255201305² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 10225520126 + ... + 10225520135.

It is an arithmetic number, because the mean of its divisors is an integer number (30676560393).

Almost surely, 2^102255201305 is an apocalyptic number.

It is an amenable number.

102255201305 is a deficient number, since it is larger than the sum of its proper divisors (20451040267).

102255201305 is an equidigital number, since it uses as much as digits as its factorization.

102255201305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20451040266.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 102255201305 its reverse (503102552201), we get a palindrome (605357753506).

The spelling of 102255201305 in words is "one hundred two billion, two hundred fifty-five million, two hundred one thousand, three hundred five".