30681108302242 has 4 divisors (see below), whose sum is σ = 46021662453366. Its totient is φ = 15340554151120.

The previous prime is 30681108302231. The next prime is 30681108302263. The reversal of 30681108302242 is 24220380118603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29707612319961 + 973495982281 = 5450469^2 + 986659^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 30681108302195 and 30681108302204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7670277075559 + ... + 7670277075562.

Almost surely, 2^{30681108302242} is an apocalyptic number.

30681108302242 is a deficient number, since it is larger than the sum of its proper divisors (15340554151124).

30681108302242 is a wasteful number, since it uses less digits than its factorization.

30681108302242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15340554151123.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 30681108302242 in words is "thirty trillion, six hundred eighty-one billion, one hundred eight million, three hundred two thousand, two hundred forty-two".