30311321032312 has 64 divisors (see below), whose sum is σ = 59368008787200. Its totient is φ = 14481263047680.

The previous prime is 30311321032247. The next prime is 30311321032319. The reversal of 30311321032312 is 21323012311303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311321032319) 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, 1261960639 + ... + 1261984657.

It is an arithmetic number, because the mean of its divisors is an integer number (927625137300).

Almost surely, 2^{30311321032312} is an apocalyptic number.

It is an amenable number.

30311321032312 is a deficient number, since it is larger than the sum of its proper divisors (29056687754888).

30311321032312 is a wasteful number, since it uses less digits than its factorization.

30311321032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31076 (or 31072 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 30311321032312 its reverse (21323012311303), we get a palindrome (51634333343615).

The spelling of 30311321032312 in words is "thirty trillion, three hundred eleven billion, three hundred twenty-one million, thirty-two thousand, three hundred twelve".