30313223231321 has 32 divisors (see below), whose sum is σ = 33253079737248. Its totient is φ = 27518321295360.

The previous prime is 30313223231251. The next prime is 30313223231429. The reversal of 30313223231321 is 12313232231303.

It can be written as a sum of positive squares in 16 ways, for example, as 7420720810000 + 22892502421321 = 2724100^2 + 4784611^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30313223231321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30313223231021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64196141 + ... + 64666613.

It is an arithmetic number, because the mean of its divisors is an integer number (1039158741789).

Almost surely, 2^{30313223231321} is an apocalyptic number.

It is an amenable number.

30313223231321 is a deficient number, since it is larger than the sum of its proper divisors (2939856505927).

30313223231321 is a wasteful number, since it uses less digits than its factorization.

30313223231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471581.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 30313223231321 its reverse (12313232231303), we get a palindrome (42626455462624).

The spelling of 30313223231321 in words is "thirty trillion, three hundred thirteen billion, two hundred twenty-three million, two hundred thirty-one thousand, three hundred twenty-one".