12641420353 has 4 divisors (see below), whose sum is σ = 12641690368. Its totient is φ = 12641150340.

The previous prime is 12641420263. The next prime is 12641420369. The reversal of 12641420353 is 35302414621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12641420353 - 2²¹ = 12639323201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12641420383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44601 + ... + 165142.

It is an arithmetic number, because the mean of its divisors is an integer number (3160422592).

Almost surely, 2^12641420353 is an apocalyptic number.

It is an amenable number.

12641420353 is a deficient number, since it is larger than the sum of its proper divisors (270015).

12641420353 is an equidigital number, since it uses as much as digits as its factorization.

12641420353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270014.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 12641420353 its reverse (35302414621), we get a palindrome (47943834974).

The spelling of 12641420353 in words is "twelve billion, six hundred forty-one million, four hundred twenty thousand, three hundred fifty-three".