30012320233 has 4 divisors (see below), whose sum is σ = 34299794560. Its totient is φ = 25724845908.

The previous prime is 30012320207. The next prime is 30012320237. The reversal of 30012320233 is 33202321003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30012320233 - 2¹³ = 30012312041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30012320233.

It is not an unprimeable number, because it can be changed into a prime (30012320237) 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, 2143737153 + ... + 2143737166.

It is an arithmetic number, because the mean of its divisors is an integer number (8574948640).

Almost surely, 2^30012320233 is an apocalyptic number.

It is an amenable number.

30012320233 is a deficient number, since it is larger than the sum of its proper divisors (4287474327).

30012320233 is an equidigital number, since it uses as much as digits as its factorization.

30012320233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287474326.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30012320233 its reverse (33202321003), we get a palindrome (63214641236).

It can be divided in two parts, 300123 and 20233, that added together give a square (320356 = 566²).

The spelling of 30012320233 in words is "thirty billion, twelve million, three hundred twenty thousand, two hundred thirty-three".