30011021000 has 128 divisors (see below), whose sum is σ = 73754703360. Its totient is φ = 11407968000.

The previous prime is 30011020927. The next prime is 30011021039. The reversal of 30011021000 is 12011003.

It is a super-2 number, since 2×30011021000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3606845 + ... + 3615155.

It is an arithmetic number, because the mean of its divisors is an integer number (576208620).

Almost surely, 2^30011021000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30011021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36877351680).

30011021000 is an abundant number, since it is smaller than the sum of its proper divisors (43743682360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30011021000 is a wasteful number, since it uses less digits than its factorization.

30011021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512 (or 8498 counting only the distinct ones).

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

Adding to 30011021000 its reverse (12011003), we get a palindrome (30023032003).

The spelling of 30011021000 in words is "thirty billion, eleven million, twenty-one thousand".