30144550021 has 8 divisors (see below), whose sum is σ = 30876200960. Its totient is φ = 29414290752.

The previous prime is 30144550013. The next prime is 30144550031. The reversal of 30144550021 is 12005544103.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30144550021 - 2³ = 30144550013 is a prime.

It is a super-2 number, since 2×30144550021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30144550031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304005 + ... + 390778.

It is an arithmetic number, because the mean of its divisors is an integer number (3859525120).

Almost surely, 2^30144550021 is an apocalyptic number.

It is an amenable number.

30144550021 is a deficient number, since it is larger than the sum of its proper divisors (731650939).

30144550021 is a wasteful number, since it uses less digits than its factorization.

30144550021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695835.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 30144550021 in words is "thirty billion, one hundred forty-four million, five hundred fifty thousand, twenty-one".