30230220021 has 8 divisors (see below), whose sum is σ = 40319340960. Its totient is φ = 20147289552.

The previous prime is 30230220017. The next prime is 30230220043. The reversal of 30230220021 is 12002203203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30230220021 - 2² = 30230220017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230220061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536210 + ... + 1555763.

It is an arithmetic number, because the mean of its divisors is an integer number (5039917620).

Almost surely, 2^30230220021 is an apocalyptic number.

It is an amenable number.

30230220021 is a deficient number, since it is larger than the sum of its proper divisors (10089120939).

30230220021 is a wasteful number, since it uses less digits than its factorization.

30230220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095235.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30230220021 its reverse (12002203203), we get a palindrome (42232423224).

The spelling of 30230220021 in words is "thirty billion, two hundred thirty million, two hundred twenty thousand, twenty-one".