30018980317 has 4 divisors (see below), whose sum is σ = 30024856540. Its totient is φ = 30013104096.

The previous prime is 30018980297. The next prime is 30018980353. The reversal of 30018980317 is 71308981003.

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 10756593796 + 19262386521 = 103714^2 + 138789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30018980317 is a prime.

It is a super-2 number, since 2×30018980317² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30018980317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30018920317) 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, 2930442 + ... + 2940667.

It is an arithmetic number, because the mean of its divisors is an integer number (7506214135).

Almost surely, 2^30018980317 is an apocalyptic number.

It is an amenable number.

30018980317 is a deficient number, since it is larger than the sum of its proper divisors (5876223).

30018980317 is an equidigital number, since it uses as much as digits as its factorization.

30018980317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876222.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 30018980317 in words is "thirty billion, eighteen million, nine hundred eighty thousand, three hundred seventeen".