30111103242 has 32 divisors (see below), whose sum is σ = 72996615360. Its totient is φ = 9124576560.

The previous prime is 30111103207. The next prime is 30111103249. The reversal of 30111103242 is 24230111103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30111103249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25345453 + ... + 25346640.

It is an arithmetic number, because the mean of its divisors is an integer number (2281144230).

Almost surely, 2^30111103242 is an apocalyptic number.

30111103242 is an abundant number, since it is smaller than the sum of its proper divisors (42885512118).

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

30111103242 is a wasteful number, since it uses less digits than its factorization.

30111103242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50692115 (or 50692109 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30111103242 its reverse (24230111103), we get a palindrome (54341214345).

The spelling of 30111103242 in words is "thirty billion, one hundred eleven million, one hundred three thousand, two hundred forty-two".