12243417530 has 16 divisors (see below), whose sum is σ = 22049245224. Its totient is φ = 4894901760.

The previous prime is 12243417517. The next prime is 12243417539. The reversal of 12243417530 is 3571434221.

It can be written as a sum of positive squares in 4 ways, for example, as 11869884601 + 373532929 = 108949^2 + 19327^2 .

It is a super-2 number, since 2×12243417530² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12243417539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287231 + ... + 327090.

Almost surely, 2^12243417530 is an apocalyptic number.

12243417530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12243417530 is a deficient number, since it is larger than the sum of its proper divisors (9805827694).

12243417530 is a wasteful number, since it uses less digits than its factorization.

12243417530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616321.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 12243417530 in words is "twelve billion, two hundred forty-three million, four hundred seventeen thousand, five hundred thirty".