30131668363 has 4 divisors (see below), whose sum is σ = 31170691440. Its totient is φ = 29092645288.

The previous prime is 30131668327. The next prime is 30131668379. The reversal of 30131668363 is 36386613103.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30131668363 is a prime.

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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30131668163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519511495 + ... + 519511552.

It is an arithmetic number, because the mean of its divisors is an integer number (7792672860).

Almost surely, 2^30131668363 is an apocalyptic number.

30131668363 is a deficient number, since it is larger than the sum of its proper divisors (1039023077).

30131668363 is a wasteful number, since it uses less digits than its factorization.

30131668363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039023076.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 30131668363 in words is "thirty billion, one hundred thirty-one million, six hundred sixty-eight thousand, three hundred sixty-three".