30012021200321 has 4 divisors (see below), whose sum is σ = 30744021717444. Its totient is φ = 29280020683200.

The previous prime is 30012021200281. The next prime is 30012021200383. The reversal of 30012021200321 is 12300212021003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16179862656400 + 13832158543921 = 4022420^2 + 3719161^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012021200321 - 2¹⁸ = 30012020938177 is a prime.

It is a super-2 number, since 2×30012021200321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30012021200321.

It is not an unprimeable number, because it can be changed into a prime (30012021200221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366000258500 + ... + 366000258581.

It is an arithmetic number, because the mean of its divisors is an integer number (7686005429361).

Almost surely, 2^{30012021200321} is an apocalyptic number.

It is an amenable number.

30012021200321 is a deficient number, since it is larger than the sum of its proper divisors (732000517123).

30012021200321 is an equidigital number, since it uses as much as digits as its factorization.

30012021200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732000517122.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30012021200321 its reverse (12300212021003), we get a palindrome (42312233221324).

The spelling of 30012021200321 in words is "thirty trillion, twelve billion, twenty-one million, two hundred thousand, three hundred twenty-one".