30312321223 has 16 divisors (see below), whose sum is σ = 32202907776. Its totient is φ = 28433825280.

The previous prime is 30312321191. The next prime is 30312321227. The reversal of 30312321223 is 32212321303.

It is a cyclic number.

It is not a de Polignac number, because 30312321223 - 2⁵ = 30312321191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30312321194 and 30312321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312321227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14692290 + ... + 14694352.

It is an arithmetic number, because the mean of its divisors is an integer number (2012681736).

Almost surely, 2^30312321223 is an apocalyptic number.

30312321223 is a deficient number, since it is larger than the sum of its proper divisors (1890586553).

30312321223 is a wasteful number, since it uses less digits than its factorization.

30312321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30312321223 its reverse (32212321303), we get a palindrome (62524642526).

The spelling of 30312321223 in words is "thirty billion, three hundred twelve million, three hundred twenty-one thousand, two hundred twenty-three".