30111020989 has 8 divisors (see below), whose sum is σ = 34540525440. Its totient is φ = 25713499056.

The previous prime is 30111020983. The next prime is 30111021013. The reversal of 30111020989 is 98902011103.

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

It is not a de Polignac number, because 30111020989 - 2³ = 30111020981 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 (30111020981) 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 7 ways as a sum of consecutive naturals, for example, 7993609 + ... + 7997374.

It is an arithmetic number, because the mean of its divisors is an integer number (4317565680).

Almost surely, 2^30111020989 is an apocalyptic number.

It is an amenable number.

30111020989 is a deficient number, since it is larger than the sum of its proper divisors (4429504451).

30111020989 is a wasteful number, since it uses less digits than its factorization.

30111020989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15991259.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 30111020989 in words is "thirty billion, one hundred eleven million, twenty thousand, nine hundred eighty-nine".