12340877453 has 4 divisors (see below), whose sum is σ = 12343375008. Its totient is φ = 12338379900.

The previous prime is 12340877443. The next prime is 12340877459. The reversal of 12340877453 is 35477804321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35477804321 = 19 ⋅1867252859.

It is a cyclic number.

It is not a de Polignac number, because 12340877453 - 2¹⁴ = 12340861069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340877459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241351 + ... + 1251252.

It is an arithmetic number, because the mean of its divisors is an integer number (3085843752).

Almost surely, 2^12340877453 is an apocalyptic number.

It is an amenable number.

12340877453 is a deficient number, since it is larger than the sum of its proper divisors (2497555).

12340877453 is an equidigital number, since it uses as much as digits as its factorization.

12340877453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497554.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 12340877453 in words is "twelve billion, three hundred forty million, eight hundred seventy-seven thousand, four hundred fifty-three".