30230210123021 has 4 divisors (see below), whose sum is σ = 30404951222172. Its totient is φ = 30055469023872.

The previous prime is 30230210123011. The next prime is 30230210123093. The reversal of 30230210123021 is 12032101203203.

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 26605428222025 + 3624781900996 = 5158045^2 + 1903886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30230210123021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30230210122984 and 30230210123002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230210123011) 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, 87370549316 + ... + 87370549661.

It is an arithmetic number, because the mean of its divisors is an integer number (7601237805543).

Almost surely, 2^{30230210123021} is an apocalyptic number.

It is an amenable number.

30230210123021 is a deficient number, since it is larger than the sum of its proper divisors (174741099151).

30230210123021 is a wasteful number, since it uses less digits than its factorization.

30230210123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174741099150.

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

Adding to 30230210123021 its reverse (12032101203203), we get a palindrome (42262311326224).

The spelling of 30230210123021 in words is "thirty trillion, two hundred thirty billion, two hundred ten million, one hundred twenty-three thousand, twenty-one".