30320013231 has 56 divisors (see below), whose sum is σ = 46513620560. Its totient is φ = 19749764736.

The previous prime is 30320013209. The next prime is 30320013253. The reversal of 30320013231 is 13231002303.

30320013231 is a `hidden beast` number, since 303 + 200 + 132 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (30320013209) and next prime (30320013253).

It is not a de Polignac number, because 30320013231 - 2⁶ = 30320013167 is a prime.

It is a super-2 number, since 2×30320013231² (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 (30320013131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5798040 + ... + 5803266.

Almost surely, 2^30320013231 is an apocalyptic number.

30320013231 is a deficient number, since it is larger than the sum of its proper divisors (16193607329).

30320013231 is an equidigital number, since it uses as much as digits as its factorization.

30320013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427 (or 5412 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30320013231 its reverse (13231002303), we get a palindrome (43551015534).

The spelling of 30320013231 in words is "thirty billion, three hundred twenty million, thirteen thousand, two hundred thirty-one".