30111100000 has 144 divisors (see below), whose sum is σ = 75158127072. Its totient is φ = 11872000000.

The previous prime is 30111099979. The next prime is 30111100007. The reversal of 30111100000 is 111103.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111100007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7097880 + ... + 7102120.

It is an arithmetic number, because the mean of its divisors is an integer number (521931438).

Almost surely, 2^30111100000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37579063536).

30111100000 is an abundant number, since it is smaller than the sum of its proper divisors (45047027072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30111100000 is an frugal number, since it uses more digits than its factorization.

30111100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347 (or 4319 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 30111100000 its reverse (111103), we get a palindrome (30111211103).

It can be divided in two parts, 3011 and 1100000, that added together give a palindrome (1103011).

The spelling of 30111100000 in words is "thirty billion, one hundred eleven million, one hundred thousand".