30320003213172 has 72 divisors (see below), whose sum is σ = 79992903299400. Its totient is φ = 9674122798080.

The previous prime is 30320003213053. The next prime is 30320003213173. The reversal of 30320003213172 is 27131230002303.

30320003213172 is a `hidden beast` number, since 3 + 0 + 3 + 20 + 0 + 0 + 321 + 317 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 610592211216 + 29709411001956 = 781404^2 + 5450634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320003213173) 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, 193714297 + ... + 193870752.

It is an arithmetic number, because the mean of its divisors is an integer number (1111012545825).

Almost surely, 2^{30320003213172} is an apocalyptic number.

It is an amenable number.

30320003213172 is an abundant number, since it is smaller than the sum of its proper divisors (49672900086228).

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

30320003213172 is a wasteful number, since it uses less digits than its factorization.

30320003213172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387585153 (or 387585148 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

Adding to 30320003213172 its reverse (27131230002303), we get a palindrome (57451233215475).

The spelling of 30320003213172 in words is "thirty trillion, three hundred twenty billion, three million, two hundred thirteen thousand, one hundred seventy-two".