1308240012 has 24 divisors (see below), whose sum is σ = 3065667696. Its totient is φ = 434207488.

The previous prime is 1308240001. The next prime is 1308240053. The reversal of 1308240012 is 2100428031.

It is a super-2 number, since 2×1308240012² = 3422983857995520288, which contains 22 as substring.

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, 231153 + ... + 236744.

It is an arithmetic number, because the mean of its divisors is an integer number (127736154).

Almost surely, 2^1308240012 is an apocalyptic number.

1308240012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1308240012 is an abundant number, since it is smaller than the sum of its proper divisors (1757427684).

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

1308240012 is a wasteful number, since it uses less digits than its factorization.

1308240012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468137 (or 468135 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1308240012 is about 36169.6006613288. The cubic root of 1308240012 is about 1093.6939487706.

Adding to 1308240012 its reverse (2100428031), we get a palindrome (3408668043).

The spelling of 1308240012 in words is "one billion, three hundred eight million, two hundred forty thousand, twelve".