30211030242 has 240 divisors, whose sum is σ = 76096140120. Its totient is φ = 8925548544.

The previous prime is 30211030193. The next prime is 30211030249. The reversal of 30211030242 is 24203011203.

It can be written as a sum of positive squares in 4 ways, for example, as 21418029801 + 8793000441 = 146349^2 + 93771^2 .

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 (30211030249) 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 119 ways as a sum of consecutive naturals, for example, 129660958 + ... + 129661190.

Almost surely, 2^30211030242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30211030242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38048070060).

30211030242 is an abundant number, since it is smaller than the sum of its proper divisors (45885109878).

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

30211030242 is a wasteful number, since it uses less digits than its factorization.

30211030242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30211030242 its reverse (24203011203), we get a palindrome (54414041445).

The spelling of 30211030242 in words is "thirty billion, two hundred eleven million, thirty thousand, two hundred forty-two".