30312031124 has 12 divisors (see below), whose sum is σ = 53342402400. Its totient is φ = 15071344728.

The previous prime is 30312031117. The next prime is 30312031129. The reversal of 30312031124 is 42113021303.

It is a junction number, because it is equal to n+sod(n) for n = 30312031096 and 30312031105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312031129) 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 3 ways as a sum of consecutive naturals, for example, 21166904 + ... + 21168335.

It is an arithmetic number, because the mean of its divisors is an integer number (4445200200).

Almost surely, 2^30312031124 is an apocalyptic number.

It is an amenable number.

30312031124 is a deficient number, since it is larger than the sum of its proper divisors (23030371276).

30312031124 is a wasteful number, since it uses less digits than its factorization.

30312031124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42335422 (or 42335420 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30312031124 its reverse (42113021303), we get a palindrome (72425052427).

The spelling of 30312031124 in words is "thirty billion, three hundred twelve million, thirty-one thousand, one hundred twenty-four".