30115030840 has 32 divisors (see below), whose sum is σ = 67787280000. Its totient is φ = 12040952704.

The previous prime is 30115030823. The next prime is 30115030853. The reversal of 30115030840 is 4803051103.

It is a super-2 number, since 2×30115030840² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60955 + ... + 252874.

It is an arithmetic number, because the mean of its divisors is an integer number (2118352500).

Almost surely, 2^30115030840 is an apocalyptic number.

It is an amenable number.

30115030840 is an abundant number, since it is smaller than the sum of its proper divisors (37672249160).

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

30115030840 is a wasteful number, since it uses less digits than its factorization.

30115030840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316239 (or 316235 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 30115030840 its reverse (4803051103), we get a palindrome (34918081943).

The spelling of 30115030840 in words is "thirty billion, one hundred fifteen million, thirty thousand, eight hundred forty".