30105820871 has 8 divisors (see below), whose sum is σ = 34420907040. Its totient is φ = 25794298368.

The previous prime is 30105820807. The next prime is 30105820873. The reversal of 30105820871 is 17802850103.

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

It is a cyclic number.

It is not a de Polignac number, because 30105820871 - 2⁶ = 30105820807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30105820873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872786 + ... + 906623.

It is an arithmetic number, because the mean of its divisors is an integer number (4302613380).

Almost surely, 2^30105820871 is an apocalyptic number.

30105820871 is a deficient number, since it is larger than the sum of its proper divisors (4315086169).

30105820871 is a wasteful number, since it uses less digits than its factorization.

30105820871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781833.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 30105820871 in words is "thirty billion, one hundred five million, eight hundred twenty thousand, eight hundred seventy-one".