30111302100 has 144 divisors (see below), whose sum is σ = 95884488000. Its totient is φ = 7235020800.

The previous prime is 30111302099. The next prime is 30111302107. The reversal of 30111302100 is 120311103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111302107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 332526 + ... + 413274.

It is an arithmetic number, because the mean of its divisors is an integer number (665864500).

Almost surely, 2^30111302100 is an apocalyptic number.

30111302100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111302100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47942244000).

30111302100 is an abundant number, since it is smaller than the sum of its proper divisors (65773185900).

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

30111302100 is a wasteful number, since it uses less digits than its factorization.

30111302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80890 (or 80883 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 30111302100 its reverse (120311103), we get a palindrome (30231613203).

The spelling of 30111302100 in words is "thirty billion, one hundred eleven million, three hundred two thousand, one hundred".