30313122232231 has 4 divisors (see below), whose sum is σ = 30313133362512. Its totient is φ = 30313111101952.

The previous prime is 30313122232219. The next prime is 30313122232291. The reversal of 30313122232231 is 13223222131303.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30313122232231 - 2⁵ = 30313122232199 is a prime.

It is a super-2 number, since 2×30313122232231² (a number of 28 digits) contains 22 as substring.

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 30313122232231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313122232291) 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, 1566126 + ... + 7942228.

It is an arithmetic number, because the mean of its divisors is an integer number (7578283340628).

Almost surely, 2^{30313122232231} is an apocalyptic number.

30313122232231 is a deficient number, since it is larger than the sum of its proper divisors (11130281).

30313122232231 is an equidigital number, since it uses as much as digits as its factorization.

30313122232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130280.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 30313122232231 its reverse (13223222131303), we get a palindrome (43536344363534).

The spelling of 30313122232231 in words is "thirty trillion, three hundred thirteen billion, one hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty-one".