30321420215 has 8 divisors (see below), whose sum is σ = 36386867088. Its totient is φ = 24256360960.

The previous prime is 30321420209. The next prime is 30321420223. The reversal of 30321420215 is 51202412303.

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

It is not a de Polignac number, because 30321420215 - 2¹⁸ = 30321158071 is a prime.

It is a super-2 number, since 2×30321420215² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118880 + ... + 273450.

It is an arithmetic number, because the mean of its divisors is an integer number (4548358386).

Almost surely, 2^30321420215 is an apocalyptic number.

30321420215 is a deficient number, since it is larger than the sum of its proper divisors (6065446873).

30321420215 is a wasteful number, since it uses less digits than its factorization.

30321420215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193809.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 30321420215 its reverse (51202412303), we get a palindrome (81523832518).

The spelling of 30321420215 in words is "thirty billion, three hundred twenty-one million, four hundred twenty thousand, two hundred fifteen".