30000131220312 has 96 divisors (see below), whose sum is σ = 90309142993680. Its totient is φ = 8919421505280.

The previous prime is 30000131220251. The next prime is 30000131220313. The reversal of 30000131220312 is 21302213100003.

30000131220312 is a `hidden beast` number, since 3 + 0 + 0 + 0 + 0 + 131 + 220 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000131220313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357306643 + ... + 357390594.

Almost surely, 2^{30000131220312} is an apocalyptic number.

It is an amenable number.

30000131220312 is an abundant number, since it is smaller than the sum of its proper divisors (60309011773368).

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

30000131220312 is a wasteful number, since it uses less digits than its factorization.

30000131220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714697313 (or 714697306 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30000131220312 its reverse (21302213100003), we get a palindrome (51302344320315).

The spelling of 30000131220312 in words is "thirty trillion, one hundred thirty-one million, two hundred twenty thousand, three hundred twelve".