12420043413 has 32 divisors (see below), whose sum is σ = 18254964096. Its totient is φ = 7478396928.

The previous prime is 12420043403. The next prime is 12420043423. The reversal of 12420043413 is 31434002421.

It is an interprime number because it is at equal distance from previous prime (12420043403) and next prime (12420043423).

It is not a de Polignac number, because 12420043413 - 2⁴ = 12420043397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420043403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92670 + ... + 182832.

It is an arithmetic number, because the mean of its divisors is an integer number (570467628).

Almost surely, 2^12420043413 is an apocalyptic number.

It is an amenable number.

12420043413 is a deficient number, since it is larger than the sum of its proper divisors (5834920683).

12420043413 is a wasteful number, since it uses less digits than its factorization.

12420043413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90293.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12420043413 its reverse (31434002421), we get a palindrome (43854045834).

The spelling of 12420043413 in words is "twelve billion, four hundred twenty million, forty-three thousand, four hundred thirteen".