30311223223240 has 64 divisors (see below), whose sum is σ = 68805814901760. Its totient is φ = 12016840012800.

The previous prime is 30311223223163. The next prime is 30311223223291. The reversal of 30311223223240 is 4232232211303.

It is a junction number, because it is equal to n+sod(n) for n = 30311223223199 and 30311223223208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197840665 + ... + 197993815.

It is an arithmetic number, because the mean of its divisors is an integer number (1075090857840).

Almost surely, 2^{30311223223240} is an apocalyptic number.

It is an amenable number.

30311223223240 is an abundant number, since it is smaller than the sum of its proper divisors (38494591678520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30311223223240 is a wasteful number, since it uses less digits than its factorization.

30311223223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197062 (or 197058 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 30311223223240 its reverse (4232232211303), we get a palindrome (34543455434543).

The spelling of 30311223223240 in words is "thirty trillion, three hundred eleven billion, two hundred twenty-three million, two hundred twenty-three thousand, two hundred forty".