3120030181 has 2 divisors, whose sum is σ = 3120030182. Its totient is φ = 3120030180.

The previous prime is 3120030167. The next prime is 3120030197. The reversal of 3120030181 is 1810300213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2445797025 + 674233156 = 49455^2 + 25966^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120030181 - 2²³ = 3111641573 is a prime.

It is a super-2 number, since 2×3120030181² = 19469176660701785522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120030481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560015090 + 1560015091.

It is an arithmetic number, because the mean of its divisors is an integer number (1560015091).

Almost surely, 2^3120030181 is an apocalyptic number.

It is an amenable number.

3120030181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120030181 is an equidigital number, since it uses as much as digits as its factorization.

3120030181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 3120030181 is about 55857.2303377101. The cubic root of 3120030181 is about 1461.2334264794.

Adding to 3120030181 its reverse (1810300213), we get a palindrome (4930330394).

The spelling of 3120030181 in words is "three billion, one hundred twenty million, thirty thousand, one hundred eighty-one".