30512230156 has 24 divisors (see below), whose sum is σ = 56547635760. Its totient is φ = 14356088832.

The previous prime is 30512230141. The next prime is 30512230157. The reversal of 30512230156 is 65103221503.

It is not an unprimeable number, because it can be changed into a prime (30512230157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366076 + ... + 441628.

It is an arithmetic number, because the mean of its divisors is an integer number (2356151490).

Almost surely, 2^30512230156 is an apocalyptic number.

It is an amenable number.

30512230156 is a deficient number, since it is larger than the sum of its proper divisors (26035405604).

30512230156 is a wasteful number, since it uses less digits than its factorization.

30512230156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81513 (or 81511 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 30512230156 its reverse (65103221503), we get a palindrome (95615451659).

The spelling of 30512230156 in words is "thirty billion, five hundred twelve million, two hundred thirty thousand, one hundred fifty-six".