30138047371 has 2 divisors, whose sum is σ = 30138047372. Its totient is φ = 30138047370.

The previous prime is 30138047351. The next prime is 30138047383. The reversal of 30138047371 is 17374083103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30138047371 - 2¹³ = 30138039179 is a prime.

It is a super-3 number, since 3×30138047371³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30138047371.

It is not a weakly prime, because it can be changed into another prime (30138047351) 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, 15069023685 + 15069023686.

It is an arithmetic number, because the mean of its divisors is an integer number (15069023686).

Almost surely, 2^30138047371 is an apocalyptic number.

30138047371 is a deficient number, since it is larger than the sum of its proper divisors (1).

30138047371 is an equidigital number, since it uses as much as digits as its factorization.

30138047371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 30138047371 in words is "thirty billion, one hundred thirty-eight million, forty-seven thousand, three hundred seventy-one".