30010100021 has 8 divisors (see below), whose sum is σ = 32740070304. Its totient is φ = 27280426320.

The previous prime is 30010099997. The next prime is 30010100041. The reversal of 30010100021 is 12000101003.

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 30010100021 - 2¹⁴ = 30010083637 is a prime.

It is a super-2 number, since 2×30010100021² (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 = 30010099981 and 30010100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010100041) 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, 173375 + ... + 300131.

It is an arithmetic number, because the mean of its divisors is an integer number (4092508788).

Almost surely, 2^30010100021 is an apocalyptic number.

It is an amenable number.

30010100021 is a deficient number, since it is larger than the sum of its proper divisors (2729970283).

30010100021 is a wasteful number, since it uses less digits than its factorization.

30010100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148291.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 30010100021 its reverse (12000101003), we get a palindrome (42010201024).

It can be divided in two parts, 30010 and 100021, that added together give a palindrome (130031).

The spelling of 30010100021 in words is "thirty billion, ten million, one hundred thousand, twenty-one".