30068515231 has 2 divisors, whose sum is σ = 30068515232. Its totient is φ = 30068515230.

The previous prime is 30068515159. The next prime is 30068515249. The reversal of 30068515231 is 13251586003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30068515231 - 2¹⁹ = 30067990943 is a prime.

It is a super-2 number, since 2×30068515231² (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 (30068515031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15034257615 + 15034257616.

It is an arithmetic number, because the mean of its divisors is an integer number (15034257616).

Almost surely, 2^30068515231 is an apocalyptic number.

30068515231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30068515231 is an equidigital number, since it uses as much as digits as its factorization.

30068515231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 30068515231 in words is "thirty billion, sixty-eight million, five hundred fifteen thousand, two hundred thirty-one".