30320443402012 has 12 divisors (see below), whose sum is σ = 56181998068560. Its totient is φ = 14268443953856.

The previous prime is 30320443402003. The next prime is 30320443402013. The reversal of 30320443402012 is 21020434402303.

It is a super-2 number, since 2×30320443402012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320443402013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222944436712 + ... + 222944436847.

It is an arithmetic number, because the mean of its divisors is an integer number (4681833172380).

Almost surely, 2^{30320443402012} is an apocalyptic number.

It is an amenable number.

30320443402012 is a deficient number, since it is larger than the sum of its proper divisors (25861554666548).

30320443402012 is a wasteful number, since it uses less digits than its factorization.

30320443402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445888873580 (or 445888873578 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 30320443402012 its reverse (21020434402303), we get a palindrome (51340877804315).

The spelling of 30320443402012 in words is "thirty trillion, three hundred twenty billion, four hundred forty-three million, four hundred two thousand, twelve".