30231244120 has 128 divisors (see below), whose sum is σ = 86609295360. Its totient is φ = 9222197760.

The previous prime is 30231244117. The next prime is 30231244123. The reversal of 30231244120 is 2144213203.

It is an interprime number because it is at equal distance from previous prime (30231244117) and next prime (30231244123).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 30231244091 and 30231244100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231244123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40342 + ... + 249178.

It is an arithmetic number, because the mean of its divisors is an integer number (676635120).

Almost surely, 2^30231244120 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 30231244120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43304647680).

30231244120 is an abundant number, since it is smaller than the sum of its proper divisors (56378051240).

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

30231244120 is a wasteful number, since it uses less digits than its factorization.

30231244120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208913 (or 208909 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30231244120 its reverse (2144213203), we get a palindrome (32375457323).

The spelling of 30231244120 in words is "thirty billion, two hundred thirty-one million, two hundred forty-four thousand, one hundred twenty".