30125213744 has 20 divisors (see below), whose sum is σ = 58395083160. Its totient is φ = 15055514880.

The previous prime is 30125213731. The next prime is 30125213761. The reversal of 30125213744 is 44731252103.

It is a self number, because there is not a number n which added to its sum of digits gives 30125213744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408122 + ... + 476249.

It is an arithmetic number, because the mean of its divisors is an integer number (2919754158).

Almost surely, 2^30125213744 is an apocalyptic number.

It is an amenable number.

30125213744 is a deficient number, since it is larger than the sum of its proper divisors (28269869416).

30125213744 is a wasteful number, since it uses less digits than its factorization.

30125213744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886508 (or 886502 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 30125213744 its reverse (44731252103), we get a palindrome (74856465847).

The spelling of 30125213744 in words is "thirty billion, one hundred twenty-five million, two hundred thirteen thousand, seven hundred forty-four".