30123013032 has 72 divisors (see below), whose sum is σ = 94902871050. Its totient is φ = 8606574144.

The previous prime is 30123013013. The next prime is 30123013049. The reversal of 30123013032 is 23031032103.

30123013032 is a `hidden beast` number, since 301 + 2 + 301 + 30 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26378307396 + 3744705636 = 162414^2 + 61194^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30123012996 and 30123013014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4265607 + ... + 4272662.

Almost surely, 2^30123013032 is an apocalyptic number.

It is an amenable number.

30123013032 is an abundant number, since it is smaller than the sum of its proper divisors (64779858018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123013032 is a wasteful number, since it uses less digits than its factorization.

30123013032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538295 (or 8538281 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30123013032 its reverse (23031032103), we get a palindrome (53154045135).

The spelling of 30123013032 in words is "thirty billion, one hundred twenty-three million, thirteen thousand, thirty-two".