1343431511 has 4 divisors (see below), whose sum is σ = 1422456912. Its totient is φ = 1264406112.

The previous prime is 1343431501. The next prime is 1343431513. The reversal of 1343431511 is 1151343431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1151343431 = 7 ⋅164477633.

It is a cyclic number.

It is not a de Polignac number, because 1343431511 - 2¹⁴ = 1343415127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343431513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39512675 + ... + 39512708.

It is an arithmetic number, because the mean of its divisors is an integer number (355614228).

Almost surely, 2^1343431511 is an apocalyptic number.

1343431511 is a deficient number, since it is larger than the sum of its proper divisors (79025401).

1343431511 is an equidigital number, since it uses as much as digits as its factorization.

1343431511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79025400.

The product of its digits is 2160, while the sum is 26.

The square root of 1343431511 is about 36652.8513351963. The cubic root of 1343431511 is about 1103.4140515806.

Adding to 1343431511 its reverse (1151343431), we get a palindrome (2494774942).

The spelling of 1343431511 in words is "one billion, three hundred forty-three million, four hundred thirty-one thousand, five hundred eleven".