12420356373 has 20 divisors (see below), whose sum is σ = 19530387360. Its totient is φ = 7844434632.

The previous prime is 12420356369. The next prime is 12420356381. The reversal of 12420356373 is 37365302421.

12420356373 is a `hidden beast` number, since 1 + 2 + 4 + 20 + 3 + 563 + 73 = 666.

12420356373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12420356373 - 2² = 12420356369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420356303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4033665 + ... + 4036742.

It is an arithmetic number, because the mean of its divisors is an integer number (976519368).

Almost surely, 2^12420356373 is an apocalyptic number.

It is an amenable number.

12420356373 is a deficient number, since it is larger than the sum of its proper divisors (7110030987).

12420356373 is an equidigital number, since it uses as much as digits as its factorization.

12420356373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070438 (or 8070429 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

Adding to 12420356373 its reverse (37365302421), we get a palindrome (49785658794).

The spelling of 12420356373 in words is "twelve billion, four hundred twenty million, three hundred fifty-six thousand, three hundred seventy-three".