12302243556 has 48 divisors (see below), whose sum is σ = 29367370368. Its totient is φ = 4007180800.

The previous prime is 12302243549. The next prime is 12302243563. The reversal of 12302243556 is 65534220321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12302243549) and next prime (12302243563).

It is a super-2 number, since 2×12302243556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32386 + ... + 160166.

It is an arithmetic number, because the mean of its divisors is an integer number (611820216).

Almost surely, 2^12302243556 is an apocalyptic number.

It is an amenable number.

12302243556 is an abundant number, since it is smaller than the sum of its proper divisors (17065126812).

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

12302243556 is a wasteful number, since it uses less digits than its factorization.

12302243556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127972 (or 127970 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 12302243556 its reverse (65534220321), we get a palindrome (77836463877).

The spelling of 12302243556 in words is "twelve billion, three hundred two million, two hundred forty-three thousand, five hundred fifty-six".