30213353554021 has 16 divisors (see below), whose sum is σ = 34900588437120. Its totient is φ = 25849707655680.

The previous prime is 30213353553989. The next prime is 30213353554031. The reversal of 30213353554021 is 12045535331203.

It is a cyclic number.

It is not a de Polignac number, because 30213353554021 - 2⁵ = 30213353553989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213353554031) 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, 264681 + ... + 7777966.

It is an arithmetic number, because the mean of its divisors is an integer number (2181286777320).

Almost surely, 2^{30213353554021} is an apocalyptic number.

It is an amenable number.

30213353554021 is a deficient number, since it is larger than the sum of its proper divisors (4687234883099).

30213353554021 is a wasteful number, since it uses less digits than its factorization.

30213353554021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8062764.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 30213353554021 its reverse (12045535331203), we get a palindrome (42258888885224).

The spelling of 30213353554021 in words is "thirty trillion, two hundred thirteen billion, three hundred fifty-three million, five hundred fifty-four thousand, twenty-one".