30322731128 has 32 divisors (see below), whose sum is σ = 58485672000. Its totient is φ = 14729648640.

The previous prime is 30322731113. The next prime is 30322731137. The reversal of 30322731128 is 82113722303.

It is a junction number, because it is equal to n+sod(n) for n = 30322731094 and 30322731103.

It is a congruent number.

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, 115013 + ... + 271796.

It is an arithmetic number, because the mean of its divisors is an integer number (1827677250).

Almost surely, 2^30322731128 is an apocalyptic number.

It is an amenable number.

30322731128 is a deficient number, since it is larger than the sum of its proper divisors (28162940872).

30322731128 is a wasteful number, since it uses less digits than its factorization.

30322731128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387095 (or 387091 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 30322731128 in words is "thirty billion, three hundred twenty-two million, seven hundred thirty-one thousand, one hundred twenty-eight".