30320123012 has 24 divisors (see below), whose sum is σ = 55872465600. Its totient is φ = 14357121696.

The previous prime is 30320122997. The next prime is 30320123087. The reversal of 30320123012 is 21032102303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152513 + ... + 289655.

It is an arithmetic number, because the mean of its divisors is an integer number (2328019400).

Almost surely, 2^30320123012 is an apocalyptic number.

It is an amenable number.

30320123012 is a deficient number, since it is larger than the sum of its proper divisors (25552342588).

30320123012 is a wasteful number, since it uses less digits than its factorization.

30320123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140075 (or 140073 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30320123012 its reverse (21032102303), we get a palindrome (51352225315).

The spelling of 30320123012 in words is "thirty billion, three hundred twenty million, one hundred twenty-three thousand, twelve".