1343113421 has 4 divisors (see below), whose sum is σ = 1446429852. Its totient is φ = 1239796992.

The previous prime is 1343113411. The next prime is 1343113463. The reversal of 1343113421 is 1243113431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 697699396 + 645414025 = 26414^2 + 25405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343113421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343113411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51658196 + ... + 51658221.

It is an arithmetic number, because the mean of its divisors is an integer number (361607463).

Almost surely, 2^1343113421 is an apocalyptic number.

It is an amenable number.

1343113421 is a deficient number, since it is larger than the sum of its proper divisors (103316431).

1343113421 is a wasteful number, since it uses less digits than its factorization.

1343113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103316430.

The product of its digits is 864, while the sum is 23.

The square root of 1343113421 is about 36648.5118524613. The cubic root of 1343113421 is about 1103.3269580251.

Adding to 1343113421 its reverse (1243113431), we get a palindrome (2586226852).

The spelling of 1343113421 in words is "one billion, three hundred forty-three million, one hundred thirteen thousand, four hundred twenty-one".