1343021043 has 16 divisors (see below), whose sum is σ = 2203932416. Its totient is φ = 708406560.

The previous prime is 1343021041. The next prime is 1343021101. The reversal of 1343021043 is 3401203431.

It is not a de Polignac number, because 1343021043 - 2¹ = 1343021041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1343021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2459473 + ... + 2460018.

It is an arithmetic number, because the mean of its divisors is an integer number (137745776).

Almost surely, 2^1343021043 is an apocalyptic number.

1343021043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1343021043 is a deficient number, since it is larger than the sum of its proper divisors (860911373).

1343021043 is a wasteful number, since it uses less digits than its factorization.

1343021043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919514.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1343021043 is about 36647.2515067638. The cubic root of 1343021043 is about 1103.3016622030.

Adding to 1343021043 its reverse (3401203431), we get a palindrome (4744224474).

The spelling of 1343021043 in words is "one billion, three hundred forty-three million, twenty-one thousand, forty-three".