12130140440 has 32 divisors (see below), whose sum is σ = 29773982160. Its totient is φ = 4410960000.

The previous prime is 12130140439. The next prime is 12130140461. The reversal of 12130140440 is 4404103121.

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

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, 13783811 + ... + 13784690.

Almost surely, 2^12130140440 is an apocalyptic number.

12130140440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130140440 is an abundant number, since it is smaller than the sum of its proper divisors (17643841720).

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

12130140440 is a wasteful number, since it uses less digits than its factorization.

12130140440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27568523 (or 27568519 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12130140440 its reverse (4404103121), we get a palindrome (16534243561).

The spelling of 12130140440 in words is "twelve billion, one hundred thirty million, one hundred forty thousand, four hundred forty".