30231211120 has 120 divisors (see below), whose sum is σ = 79347233952. Its totient is φ = 10695928320.

The previous prime is 30231211117. The next prime is 30231211121. The reversal of 30231211120 is 2111213203.

It is a super-2 number, since 2×30231211120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30231211094 and 30231211103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231211121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315957 + ... + 400363.

Almost surely, 2^30231211120 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 30231211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39673616976).

30231211120 is an abundant number, since it is smaller than the sum of its proper divisors (49116022832).

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

30231211120 is a wasteful number, since it uses less digits than its factorization.

30231211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84479 (or 84462 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30231211120 its reverse (2111213203), we get a palindrome (32342424323).

The spelling of 30231211120 in words is "thirty billion, two hundred thirty-one million, two hundred eleven thousand, one hundred twenty".