1343400131 has 2 divisors, whose sum is σ = 1343400132. Its totient is φ = 1343400130.

The previous prime is 1343400127. The next prime is 1343400139. The reversal of 1343400131 is 1310043431.

It is a weak prime.

It is an emirp because it is prime and its reverse (1310043431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1343400131 - 2² = 1343400127 is a prime.

It is a super-2 number, since 2×1343400131² = 3609447823941634322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1343400139) 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 as a sum of consecutive naturals, namely, 671700065 + 671700066.

It is an arithmetic number, because the mean of its divisors is an integer number (671700066).

Almost surely, 2^1343400131 is an apocalyptic number.

1343400131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343400131 is an equidigital number, since it uses as much as digits as its factorization.

1343400131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1343400131 is about 36652.4232623165. The cubic root of 1343400131 is about 1103.4054602972.

Adding to 1343400131 its reverse (1310043431), we get a palindrome (2653443562).

The spelling of 1343400131 in words is "one billion, three hundred forty-three million, four hundred thousand, one hundred thirty-one".