1321424343 has 12 divisors (see below), whose sum is σ = 1919759400. Its totient is φ = 875856336.

The previous prime is 1321424341. The next prime is 1321424387. The reversal of 1321424343 is 3434241231.

1321424343 is a `hidden beast` number, since 13 + 214 + 2 + 434 + 3 = 666.

It is not a de Polignac number, because 1321424343 - 2¹ = 1321424341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321424341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422793 + ... + 425906.

It is an arithmetic number, because the mean of its divisors is an integer number (159979950).

Almost surely, 2^1321424343 is an apocalyptic number.

1321424343 is a deficient number, since it is larger than the sum of its proper divisors (598335057).

1321424343 is a wasteful number, since it uses less digits than its factorization.

1321424343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848878 (or 848875 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1321424343 is about 36351.4008395825. The cubic root of 1321424343 is about 1097.3557265256.

Adding to 1321424343 its reverse (3434241231), we get a palindrome (4755665574).

The spelling of 1321424343 in words is "one billion, three hundred twenty-one million, four hundred twenty-four thousand, three hundred forty-three".