12230352531 has 24 divisors (see below), whose sum is σ = 18466805760. Its totient is φ = 7790655600.

The previous prime is 12230352527. The next prime is 12230352571. The reversal of 12230352531 is 13525303221.

It is a happy number.

12230352531 is a `hidden beast` number, since 122 + 3 + 0 + 3 + 5 + 2 + 531 = 666.

It is not a de Polignac number, because 12230352531 - 2² = 12230352527 is a prime.

It is a super-2 number, since 2×12230352531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12230352495 and 12230352504.

It is not an unprimeable number, because it can be changed into a prime (12230352571) 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, 255405 + ... + 299486.

It is an arithmetic number, because the mean of its divisors is an integer number (769450240).

Almost surely, 2^12230352531 is an apocalyptic number.

12230352531 is a deficient number, since it is larger than the sum of its proper divisors (6236453229).

12230352531 is a wasteful number, since it uses less digits than its factorization.

12230352531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555007 (or 555004 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 12230352531 its reverse (13525303221), we get a palindrome (25755655752).

The spelling of 12230352531 in words is "twelve billion, two hundred thirty million, three hundred fifty-two thousand, five hundred thirty-one".