30134888261 has 2 divisors, whose sum is σ = 30134888262. Its totient is φ = 30134888260.

The previous prime is 30134888237. The next prime is 30134888299. The reversal of 30134888261 is 16288843103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27163984225 + 2970904036 = 164815^2 + 54506^2 .

It is a cyclic number.

It is not a de Polignac number, because 30134888261 - 2¹⁸ = 30134626117 is a prime.

It is a super-2 number, since 2×30134888261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30134887261) 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, 15067444130 + 15067444131.

It is an arithmetic number, because the mean of its divisors is an integer number (15067444131).

Almost surely, 2^30134888261 is an apocalyptic number.

It is an amenable number.

30134888261 is a deficient number, since it is larger than the sum of its proper divisors (1).

30134888261 is an equidigital number, since it uses as much as digits as its factorization.

30134888261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 30134888261 in words is "thirty billion, one hundred thirty-four million, eight hundred eighty-eight thousand, two hundred sixty-one".