30991641035 has 8 divisors (see below), whose sum is σ = 37537539696. Its totient is φ = 24561599200.

The previous prime is 30991640983. The next prime is 30991641047. The reversal of 30991641035 is 53014619903.

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

It is a de Polignac number, because none of the positive numbers 2^k-30991641035 is a prime.

It is a super-3 number, since 3×30991641035³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30991640983 and 30991641001.

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 in 7 ways as a sum of consecutive naturals, for example, 28963616 + ... + 28964685.

It is an arithmetic number, because the mean of its divisors is an integer number (4692192462).

Almost surely, 2^30991641035 is an apocalyptic number.

30991641035 is a deficient number, since it is larger than the sum of its proper divisors (6545898661).

30991641035 is a wasteful number, since it uses less digits than its factorization.

30991641035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57928413.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 30991641035 in words is "thirty billion, nine hundred ninety-one million, six hundred forty-one thousand, thirty-five".