12230232440 has 32 divisors (see below), whose sum is σ = 27660620880. Its totient is φ = 4866742272.

The previous prime is 12230232419. The next prime is 12230232523. The reversal of 12230232440 is 4423203221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784394 + ... + 799833.

Almost surely, 2^12230232440 is an apocalyptic number.

12230232440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230232440 is an abundant number, since it is smaller than the sum of its proper divisors (15430388440).

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

12230232440 is a wasteful number, since it uses less digits than its factorization.

12230232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584431 (or 1584427 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12230232440 its reverse (4423203221), we get a palindrome (16653435661).

The spelling of 12230232440 in words is "twelve billion, two hundred thirty million, two hundred thirty-two thousand, four hundred forty".