1244027421213 has 8 divisors (see below), whose sum is σ = 1679699472000. Its totient is φ = 818853492288.

The previous prime is 1244027421193. The next prime is 1244027421277. The reversal of 1244027421213 is 3121247204421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1244027421213 - 2¹³ = 1244027413021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244027421283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624530188 + ... + 2624530661.

It is an arithmetic number, because the mean of its divisors is an integer number (209962434000).

Almost surely, 2^{1244027421213} is an apocalyptic number.

It is an amenable number.

1244027421213 is a deficient number, since it is larger than the sum of its proper divisors (435672050787).

1244027421213 is an equidigital number, since it uses as much as digits as its factorization.

1244027421213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249060931.

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 1244027421213 in words is "one trillion, two hundred forty-four billion, twenty-seven million, four hundred twenty-one thousand, two hundred thirteen".