30780430221 has 8 divisors (see below), whose sum is σ = 41560074880. Its totient is φ = 20260536192.

The previous prime is 30780430207. The next prime is 30780430249. The reversal of 30780430221 is 12203408703.

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

It is not a de Polignac number, because 30780430221 - 2⁵ = 30780430189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30780430621) 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, 64937380 + ... + 64937853.

It is an arithmetic number, because the mean of its divisors is an integer number (5195009360).

Almost surely, 2^30780430221 is an apocalyptic number.

It is an amenable number.

30780430221 is a deficient number, since it is larger than the sum of its proper divisors (10779644659).

30780430221 is a wasteful number, since it uses less digits than its factorization.

30780430221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129875315.

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 30780430221 its reverse (12203408703), we get a palindrome (42983838924).

The spelling of 30780430221 in words is "thirty billion, seven hundred eighty million, four hundred thirty thousand, two hundred twenty-one".