30121583974 has 8 divisors (see below), whose sum is σ = 45801312840. Its totient is φ = 14854479696.

The previous prime is 30121583959. The next prime is 30121583981. The reversal of 30121583974 is 47938512103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×30121583974⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 30121583974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103155964 + ... + 103156255.

It is an arithmetic number, because the mean of its divisors is an integer number (5725164105).

Almost surely, 2^30121583974 is an apocalyptic number.

30121583974 is a deficient number, since it is larger than the sum of its proper divisors (15679728866).

30121583974 is a wasteful number, since it uses less digits than its factorization.

30121583974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206312294.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 30121583974 in words is "thirty billion, one hundred twenty-one million, five hundred eighty-three thousand, nine hundred seventy-four".