1343135431 has 8 divisors (see below), whose sum is σ = 1468381824. Its totient is φ = 1218412920.

The previous prime is 1343135389. The next prime is 1343135449. The reversal of 1343135431 is 1345313431.

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-1343135431 is a prime.

It is a super-2 number, since 2×1343135431² = 3608025572015111522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1343135431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343135231) 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, 125595 + ... + 135868.

It is an arithmetic number, because the mean of its divisors is an integer number (183547728).

Almost surely, 2^1343135431 is an apocalyptic number.

1343135431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1343135431 is a deficient number, since it is larger than the sum of its proper divisors (125246393).

1343135431 is a wasteful number, since it uses less digits than its factorization.

1343135431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261941.

The product of its digits is 6480, while the sum is 28.

The square root of 1343135431 is about 36648.8121362753. The cubic root of 1343135431 is about 1103.3329848414.

Adding to 1343135431 its reverse (1345313431), we get a palindrome (2688448862).

The spelling of 1343135431 in words is "one billion, three hundred forty-three million, one hundred thirty-five thousand, four hundred thirty-one".