30231120321 has 16 divisors (see below), whose sum is σ = 44833878720. Its totient is φ = 20132915040.

The previous prime is 30231120319. The next prime is 30231120371. The reversal of 30231120321 is 12302113203.

30231120321 is a `hidden beast` number, since 30 + 2 + 311 + 2 + 0 + 321 = 666.

It is not a de Polignac number, because 30231120321 - 2¹ = 30231120319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30231120294 and 30231120303.

It is not an unprimeable number, because it can be changed into a prime (30231120371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561715 + ... + 613176.

It is an arithmetic number, because the mean of its divisors is an integer number (2802117420).

Almost surely, 2^30231120321 is an apocalyptic number.

It is an amenable number.

30231120321 is a deficient number, since it is larger than the sum of its proper divisors (14602758399).

30231120321 is a wasteful number, since it uses less digits than its factorization.

30231120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175853 (or 1175847 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30231120321 its reverse (12302113203), we get a palindrome (42533233524).

The spelling of 30231120321 in words is "thirty billion, two hundred thirty-one million, one hundred twenty thousand, three hundred twenty-one".