1244203401311 has 8 divisors (see below), whose sum is σ = 1398168371040. Its totient is φ = 1098560862432.

The previous prime is 1244203401299. The next prime is 1244203401323. The reversal of 1244203401311 is 1131043024421.

It is an interprime number because it is at equal distance from previous prime (1244203401299) and next prime (1244203401323).

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

It is a cyclic number.

It is not a de Polignac number, because 1244203401311 - 2⁶ = 1244203401247 is a prime.

It is a super-2 number, since 2×1244203401311² (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 (1244203401391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2080607396 + ... + 2080607993.

It is an arithmetic number, because the mean of its divisors is an integer number (174771046380).

Almost surely, 2^{1244203401311} is an apocalyptic number.

1244203401311 is a deficient number, since it is larger than the sum of its proper divisors (153964969729).

1244203401311 is a wasteful number, since it uses less digits than its factorization.

1244203401311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161215425.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1244203401311 its reverse (1131043024421), we get a palindrome (2375246425732).

The spelling of 1244203401311 in words is "one trillion, two hundred forty-four billion, two hundred three million, four hundred one thousand, three hundred eleven".