30231451243 has 4 divisors (see below), whose sum is σ = 34550230000. Its totient is φ = 25912672488.

The previous prime is 30231451207. The next prime is 30231451253. The reversal of 30231451243 is 34215413203.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30231451243 - 2¹³ = 30231443051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30231451253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2159389368 + ... + 2159389381.

It is an arithmetic number, because the mean of its divisors is an integer number (8637557500).

Almost surely, 2^30231451243 is an apocalyptic number.

30231451243 is a deficient number, since it is larger than the sum of its proper divisors (4318778757).

30231451243 is an equidigital number, since it uses as much as digits as its factorization.

30231451243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318778756.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 30231451243 its reverse (34215413203), we get a palindrome (64446864446).

The spelling of 30231451243 in words is "thirty billion, two hundred thirty-one million, four hundred fifty-one thousand, two hundred forty-three".