30120665451 has 8 divisors (see below), whose sum is σ = 40180306320. Its totient is φ = 20070734112.

The previous prime is 30120665441. The next prime is 30120665453. The reversal of 30120665451 is 15456602103.

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

It is not a de Polignac number, because 30120665451 - 2¹⁸ = 30120403307 is a prime.

It is a super-2 number, since 2×30120665451² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30120665453) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2420140 + ... + 2432553.

It is an arithmetic number, because the mean of its divisors is an integer number (5022538290).

Almost surely, 2^30120665451 is an apocalyptic number.

30120665451 is a deficient number, since it is larger than the sum of its proper divisors (10059640869).

30120665451 is a wasteful number, since it uses less digits than its factorization.

30120665451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854765.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 30120665451 in words is "thirty billion, one hundred twenty million, six hundred sixty-five thousand, four hundred fifty-one".