30205315234 has 8 divisors (see below), whose sum is σ = 45335928348. Its totient is φ = 15093339120.

The previous prime is 30205315223. The next prime is 30205315237. The reversal of 30205315234 is 43251350203.

It can be written as a sum of positive squares in 2 ways, for example, as 29772467209 + 432848025 = 172547^2 + 20805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30205315234² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30205315237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4655197 + ... + 4661680.

Almost surely, 2^30205315234 is an apocalyptic number.

30205315234 is a deficient number, since it is larger than the sum of its proper divisors (15130613114).

30205315234 is a wasteful number, since it uses less digits than its factorization.

30205315234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9318500.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 30205315234 its reverse (43251350203), we get a palindrome (73456665437).

The spelling of 30205315234 in words is "thirty billion, two hundred five million, three hundred fifteen thousand, two hundred thirty-four".