1244425431413 has 4 divisors (see below), whose sum is σ = 1267905156588. Its totient is φ = 1220945706240.

The previous prime is 1244425431409. The next prime is 1244425431419. The reversal of 1244425431413 is 3141345244421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 993943199089 + 250482232324 = 996967^2 + 500482^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244425431413 - 2² = 1244425431409 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 (1244425431419) 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, 11739862508 + ... + 11739862613.

It is an arithmetic number, because the mean of its divisors is an integer number (316976289147).

Almost surely, 2^{1244425431413} is an apocalyptic number.

It is an amenable number.

1244425431413 is a deficient number, since it is larger than the sum of its proper divisors (23479725175).

1244425431413 is an equidigital number, since it uses as much as digits as its factorization.

1244425431413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23479725174.

The product of its digits is 184320, while the sum is 38.

The spelling of 1244425431413 in words is "one trillion, two hundred forty-four billion, four hundred twenty-five million, four hundred thirty-one thousand, four hundred thirteen".