30322220231 has 4 divisors (see below), whose sum is σ = 30406683600. Its totient is φ = 30237756864.

The previous prime is 30322220183. The next prime is 30322220237. The reversal of 30322220231 is 13202222303.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30322220231 is a prime.

It is a super-2 number, since 2×30322220231² (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 (30322220237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42231146 + ... + 42231863.

It is an arithmetic number, because the mean of its divisors is an integer number (7601670900).

Almost surely, 2^30322220231 is an apocalyptic number.

30322220231 is a deficient number, since it is larger than the sum of its proper divisors (84463369).

30322220231 is an equidigital number, since it uses as much as digits as its factorization.

30322220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84463368.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30322220231 its reverse (13202222303), we get a palindrome (43524442534).

The spelling of 30322220231 in words is "thirty billion, three hundred twenty-two million, two hundred twenty thousand, two hundred thirty-one".