30231100321 has 4 divisors (see below), whose sum is σ = 30244060692. Its totient is φ = 30218139952.

The previous prime is 30231100309. The next prime is 30231100369. The reversal of 30231100321 is 12300113203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10112514721 + 20118585600 = 100561^2 + 141840^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231100321 - 2²⁷ = 30096882593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231100295 and 30231100304.

It is not an unprimeable number, because it can be changed into a prime (30231100021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6476686 + ... + 6481351.

It is an arithmetic number, because the mean of its divisors is an integer number (7561015173).

Almost surely, 2^30231100321 is an apocalyptic number.

It is an amenable number.

30231100321 is a deficient number, since it is larger than the sum of its proper divisors (12960371).

30231100321 is a wasteful number, since it uses less digits than its factorization.

30231100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12960370.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30231100321 its reverse (12300113203), we get a palindrome (42531213524).

The spelling of 30231100321 in words is "thirty billion, two hundred thirty-one million, one hundred thousand, three hundred twenty-one".