30112021044 has 72 divisors (see below), whose sum is σ = 87011258880. Its totient is φ = 8601360192.

The previous prime is 30112021039. The next prime is 30112021063. The reversal of 30112021044 is 44012021103.

It is a super-2 number, since 2×30112021044² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1253902 + ... + 1277690.

Almost surely, 2^30112021044 is an apocalyptic number.

It is an amenable number.

30112021044 is an abundant number, since it is smaller than the sum of its proper divisors (56899237836).

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

30112021044 is a wasteful number, since it uses less digits than its factorization.

30112021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28829 (or 28824 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30112021044 its reverse (44012021103), we get a palindrome (74124042147).

The spelling of 30112021044 in words is "thirty billion, one hundred twelve million, twenty-one thousand, forty-four".