12431220030 has 24 divisors (see below), whose sum is σ = 32321172312. Its totient is φ = 3314991984.

The previous prime is 12431220019. The next prime is 12431220031. The reversal of 12431220030 is 3002213421.

12431220030 is a `hidden beast` number, since 1 + 2 + 431 + 2 + 200 + 30 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12431219985 and 12431220012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431220031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69062244 + ... + 69062423.

It is an arithmetic number, because the mean of its divisors is an integer number (1346715513).

Almost surely, 2^12431220030 is an apocalyptic number.

12431220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12431220030 is an abundant number, since it is smaller than the sum of its proper divisors (19889952282).

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

12431220030 is a wasteful number, since it uses less digits than its factorization.

12431220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138124680 (or 138124677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12431220030 its reverse (3002213421), we get a palindrome (15433433451).

The spelling of 12431220030 in words is "twelve billion, four hundred thirty-one million, two hundred twenty thousand, thirty".