30123333021 has 8 divisors (see below), whose sum is σ = 40165481664. Its totient is φ = 20081703200.

The previous prime is 30123332983. The next prime is 30123333041. The reversal of 30123333021 is 12033332103.

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

It is a cyclic number.

It is not a de Polignac number, because 30123333021 - 2⁶ = 30123332957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123333041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36025 + ... + 248081.

It is an arithmetic number, because the mean of its divisors is an integer number (5020685208).

Almost surely, 2^30123333021 is an apocalyptic number.

It is an amenable number.

30123333021 is a deficient number, since it is larger than the sum of its proper divisors (10042148643).

30123333021 is a wasteful number, since it uses less digits than its factorization.

30123333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259411.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30123333021 its reverse (12033332103), we get a palindrome (42156665124).

The spelling of 30123333021 in words is "thirty billion, one hundred twenty-three million, three hundred thirty-three thousand, twenty-one".