30256231243 has 6 divisors (see below), whose sum is σ = 35196024156. Its totient is φ = 25933912452.

The previous prime is 30256231231. The next prime is 30256231259. The reversal of 30256231243 is 34213265203.

It is not a de Polignac number, because 30256231243 - 2²¹ = 30254134091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30256231283) 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 5 ways as a sum of consecutive naturals, for example, 308737005 + ... + 308737102.

It is an arithmetic number, because the mean of its divisors is an integer number (5866004026).

Almost surely, 2^30256231243 is an apocalyptic number.

30256231243 is a deficient number, since it is larger than the sum of its proper divisors (4939792913).

30256231243 is an equidigital number, since it uses as much as digits as its factorization.

30256231243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617474121 (or 617474114 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 30256231243 its reverse (34213265203), we get a palindrome (64469496446).

The spelling of 30256231243 in words is "thirty billion, two hundred fifty-six million, two hundred thirty-one thousand, two hundred forty-three".