30115030842 has 48 divisors (see below), whose sum is σ = 70689265920. Its totient is φ = 9210665376.

The previous prime is 30115030823. The next prime is 30115030853. The reversal of 30115030842 is 24803051103.

It is a happy number.

30115030842 is a `hidden beast` number, since 301 + 1 + 50 + 308 + 4 + 2 = 666.

It is a super-2 number, since 2×30115030842² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346242 + ... + 424397.

It is an arithmetic number, because the mean of its divisors is an integer number (1472693040).

Almost surely, 2^30115030842 is an apocalyptic number.

30115030842 is an abundant number, since it is smaller than the sum of its proper divisors (40574235078).

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

30115030842 is a wasteful number, since it uses less digits than its factorization.

30115030842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770827 (or 770824 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 30115030842 its reverse (24803051103), we get a palindrome (54918081945).

The spelling of 30115030842 in words is "thirty billion, one hundred fifteen million, thirty thousand, eight hundred forty-two".