12031322430 has 32 divisors (see below), whose sum is σ = 28900343808. Its totient is φ = 3205556000.

The previous prime is 12031322417. The next prime is 12031322431. The reversal of 12031322430 is 3422313021.

It is a super-2 number, since 2×12031322430² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031322397 and 12031322406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031322431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139686 + ... + 208745.

It is an arithmetic number, because the mean of its divisors is an integer number (903135744).

Almost surely, 2^12031322430 is an apocalyptic number.

12031322430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031322430 is an abundant number, since it is smaller than the sum of its proper divisors (16869021378).

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

12031322430 is a wasteful number, since it uses less digits than its factorization.

12031322430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349592.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12031322430 its reverse (3422313021), we get a palindrome (15453635451).

The spelling of 12031322430 in words is "twelve billion, thirty-one million, three hundred twenty-two thousand, four hundred thirty".