30312221303112 has 48 divisors (see below), whose sum is σ = 88152888486960. Its totient is φ = 8660634657696.

The previous prime is 30312221303041. The next prime is 30312221303129. The reversal of 30312221303112 is 21130312221303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12887848018 + ... + 12887850369.

It is an arithmetic number, because the mean of its divisors is an integer number (1836518510145).

Almost surely, 2^{30312221303112} is an apocalyptic number.

It is an amenable number.

30312221303112 is an abundant number, since it is smaller than the sum of its proper divisors (57840667183848).

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

30312221303112 is a wasteful number, since it uses less digits than its factorization.

30312221303112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25775698410 (or 25775698399 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 30312221303112 its reverse (21130312221303), we get a palindrome (51442533524415).

It can be divided in two parts, 3031222 and 1303112, that added together give a palindrome (4334334).

The spelling of 30312221303112 in words is "thirty trillion, three hundred twelve billion, two hundred twenty-one million, three hundred three thousand, one hundred twelve".