30010204021 has 4 divisors (see below), whose sum is σ = 34297376032. Its totient is φ = 25723032012.

The previous prime is 30010204019. The next prime is 30010204027. The reversal of 30010204021 is 12040201003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12040201003 = 3271 ⋅3680893.

It is a cyclic number.

It is not a de Polignac number, because 30010204021 - 2¹ = 30010204019 is a prime.

It is a super-2 number, since 2×30010204021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30010203992 and 30010204010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010204027) 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, 2143585995 + ... + 2143586008.

It is an arithmetic number, because the mean of its divisors is an integer number (8574344008).

Almost surely, 2^30010204021 is an apocalyptic number.

It is an amenable number.

30010204021 is a deficient number, since it is larger than the sum of its proper divisors (4287172011).

30010204021 is an equidigital number, since it uses as much as digits as its factorization.

30010204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287172010.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30010204021 its reverse (12040201003), we get a palindrome (42050405024).

The spelling of 30010204021 in words is "thirty billion, ten million, two hundred four thousand, twenty-one".