30311012211223 has 4 divisors (see below), whose sum is σ = 30379434361128. Its totient is φ = 30242590061320.

The previous prime is 30311012211191. The next prime is 30311012211281. The reversal of 30311012211223 is 32211221011303.

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 30311012211223 - 2⁵ = 30311012211191 is a prime.

It is a super-2 number, since 2×30311012211223² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30311012211194 and 30311012211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311012211023) 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 3 ways as a sum of consecutive naturals, for example, 34211074288 + ... + 34211075173.

It is an arithmetic number, because the mean of its divisors is an integer number (7594858590282).

Almost surely, 2^{30311012211223} is an apocalyptic number.

30311012211223 is a deficient number, since it is larger than the sum of its proper divisors (68422149905).

30311012211223 is an equidigital number, since it uses as much as digits as its factorization.

30311012211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68422149904.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30311012211223 its reverse (32211221011303), we get a palindrome (62522233222526).

The spelling of 30311012211223 in words is "thirty trillion, three hundred eleven billion, twelve million, two hundred eleven thousand, two hundred twenty-three".