305041051213 has 8 divisors (see below), whose sum is σ = 306782494200. Its totient is φ = 303303303168.

The previous prime is 305041051171. The next prime is 305041051261. The reversal of 305041051213 is 312150140503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21593420809 + 283447630404 = 146947^2 + 532398^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 305041051213 - 2²¹ = 305038954061 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 (305041051013) 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 7 ways as a sum of consecutive naturals, for example, 758068 + ... + 1088461.

It is an arithmetic number, because the mean of its divisors is an integer number (38347811775).

Almost surely, 2^305041051213 is an apocalyptic number.

It is an amenable number.

305041051213 is a deficient number, since it is larger than the sum of its proper divisors (1741442987).

305041051213 is a wasteful number, since it uses less digits than its factorization.

305041051213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847471.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 305041051213 its reverse (312150140503), we get a palindrome (617191191716).

The spelling of 305041051213 in words is "three hundred five billion, forty-one million, fifty-one thousand, two hundred thirteen".