1244065306213 has 8 divisors (see below), whose sum is σ = 1244470230432. Its totient is φ = 1243660455696.

The previous prime is 1244065306199. The next prime is 1244065306223. The reversal of 1244065306213 is 3126035604421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244065306213 is a prime.

It is a super-2 number, since 2×1244065306213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244065306223) 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, 65650806 + ... + 65669752.

It is an arithmetic number, because the mean of its divisors is an integer number (155558778804).

Almost surely, 2^{1244065306213} is an apocalyptic number.

It is an amenable number.

1244065306213 is a deficient number, since it is larger than the sum of its proper divisors (404924219).

1244065306213 is a wasteful number, since it uses less digits than its factorization.

1244065306213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36851.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 1244065306213 in words is "one trillion, two hundred forty-four billion, sixty-five million, three hundred six thousand, two hundred thirteen".