30143142481 has 2 divisors, whose sum is σ = 30143142482. Its totient is φ = 30143142480.

The previous prime is 30143142437. The next prime is 30143142509. The reversal of 30143142481 is 18424134103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30096698256 + 46444225 = 173484^2 + 6815^2 .

It is an emirp because it is prime and its reverse (18424134103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30143142481 - 2¹⁵ = 30143109713 is a prime.

It is a super-2 number, since 2×30143142481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30143142431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071571240 + 15071571241.

It is an arithmetic number, because the mean of its divisors is an integer number (15071571241).

Almost surely, 2^30143142481 is an apocalyptic number.

It is an amenable number.

30143142481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30143142481 is an equidigital number, since it uses as much as digits as its factorization.

30143142481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 30143142481 its reverse (18424134103), we get a palindrome (48567276584).

The spelling of 30143142481 in words is "thirty billion, one hundred forty-three million, one hundred forty-two thousand, four hundred eighty-one".