3101201305 has 4 divisors (see below), whose sum is σ = 3721441572. Its totient is φ = 2480961040.

The previous prime is 3101201303. The next prime is 3101201357. The reversal of 3101201305 is 5031021013.

3101201305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1128153744 + 1973047561 = 33588^2 + 44419^2 .

It is not a de Polignac number, because 3101201305 - 2¹ = 3101201303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3101201303) 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, 310120126 + ... + 310120135.

It is an arithmetic number, because the mean of its divisors is an integer number (930360393).

Almost surely, 2^3101201305 is an apocalyptic number.

It is an amenable number.

3101201305 is a deficient number, since it is larger than the sum of its proper divisors (620240267).

3101201305 is an equidigital number, since it uses as much as digits as its factorization.

3101201305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620240266.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 3101201305 is about 55688.4306207313. The cubic root of 3101201305 is about 1458.2880580085.

Adding to 3101201305 its reverse (5031021013), we get a palindrome (8132222318).

The spelling of 3101201305 in words is "three billion, one hundred one million, two hundred one thousand, three hundred five".