1245322412443 has 4 divisors (see below), whose sum is σ = 1248850238328. Its totient is φ = 1241794586560.

The previous prime is 1245322412431. The next prime is 1245322412461. The reversal of 1245322412443 is 3442142235421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1245322412443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245322412483) 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, 1763912413 + ... + 1763913118.

It is an arithmetic number, because the mean of its divisors is an integer number (312212559582).

Almost surely, 2^{1245322412443} is an apocalyptic number.

1245322412443 is a deficient number, since it is larger than the sum of its proper divisors (3527825885).

1245322412443 is an equidigital number, since it uses as much as digits as its factorization.

1245322412443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527825884.

The product of its digits is 184320, while the sum is 37.

Adding to 1245322412443 its reverse (3442142235421), we get a palindrome (4687464647864).

The spelling of 1245322412443 in words is "one trillion, two hundred forty-five billion, three hundred twenty-two million, four hundred twelve thousand, four hundred forty-three".