1244042202431 has 8 divisors (see below), whose sum is σ = 1441787341824. Its totient is φ = 1051303269240.

The previous prime is 1244042202419. The next prime is 1244042202443. The reversal of 1244042202431 is 1342022404421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1244042202419) and next prime (1244042202443).

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

It is a de Polignac number, because none of the positive numbers 2^k-1244042202431 is a prime.

It is a super-2 number, since 2×1244042202431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1244042202394 and 1244042202403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244042201431) 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, 1251551015 + ... + 1251552008.

It is an arithmetic number, because the mean of its divisors is an integer number (180223417728).

Almost surely, 2^{1244042202431} is an apocalyptic number.

1244042202431 is a deficient number, since it is larger than the sum of its proper divisors (197745139393).

1244042202431 is an equidigital number, since it uses as much as digits as its factorization.

1244042202431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503103101.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1244042202431 its reverse (1342022404421), we get a palindrome (2586064606852).

The spelling of 1244042202431 in words is "one trillion, two hundred forty-four billion, forty-two million, two hundred two thousand, four hundred thirty-one".