12304031240 has 32 divisors (see below), whose sum is σ = 28887727680. Its totient is φ = 4707628992.

The previous prime is 12304031227. The next prime is 12304031269. The reversal of 12304031240 is 4213040321.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 6686054 + ... + 6687893.

It is an arithmetic number, because the mean of its divisors is an integer number (902741490).

Almost surely, 2^12304031240 is an apocalyptic number.

12304031240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304031240 is an abundant number, since it is smaller than the sum of its proper divisors (16583696440).

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

12304031240 is a wasteful number, since it uses less digits than its factorization.

12304031240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13373981 (or 13373977 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12304031240 its reverse (4213040321), we get a palindrome (16517071561).

The spelling of 12304031240 in words is "twelve billion, three hundred four million, thirty-one thousand, two hundred forty".