30121121140 has 48 divisors (see below), whose sum is σ = 69055701120. Its totient is φ = 10945047680.

The previous prime is 30121121137. The next prime is 30121121159. The reversal of 30121121140 is 4112112103.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 252201 + ... + 351919.

It is an arithmetic number, because the mean of its divisors is an integer number (1438660440).

Almost surely, 2^30121121140 is an apocalyptic number.

It is an amenable number.

30121121140 is an abundant number, since it is smaller than the sum of its proper divisors (38934579980).

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

30121121140 is a wasteful number, since it uses less digits than its factorization.

30121121140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101112 (or 101110 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 30121121140 its reverse (4112112103), we get a palindrome (34233233243).

The spelling of 30121121140 in words is "thirty billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred forty".