1344431131 has 4 divisors (see below), whose sum is σ = 1344506472. Its totient is φ = 1344355792.

The previous prime is 1344431093. The next prime is 1344431141. The reversal of 1344431131 is 1311344431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1344431131 - 2⁷ = 1344431003 is a prime.

It is a super-2 number, since 2×1344431131² = 3614990132003878322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1344431096 and 1344431105.

It is not an unprimeable number, because it can be changed into a prime (1344431141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5880 + ... + 52186.

It is an arithmetic number, because the mean of its divisors is an integer number (336126618).

Almost surely, 2^1344431131 is an apocalyptic number.

1344431131 is a deficient number, since it is larger than the sum of its proper divisors (75341).

1344431131 is an equidigital number, since it uses as much as digits as its factorization.

1344431131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75340.

The product of its digits is 1728, while the sum is 25.

The square root of 1344431131 is about 36666.4851192475. The cubic root of 1344431131 is about 1103.6876596969.

Adding to 1344431131 its reverse (1311344431), we get a palindrome (2655775562).

The spelling of 1344431131 in words is "one billion, three hundred forty-four million, four hundred thirty-one thousand, one hundred thirty-one".