1323421043 has 16 divisors (see below), whose sum is σ = 1541606400. Its totient is φ = 1112680800.

The previous prime is 1323421037. The next prime is 1323421063. The reversal of 1323421043 is 3401243231.

It is not a de Polignac number, because 1323421043 - 2⁴ = 1323421027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323421013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92213 + ... + 105593.

It is an arithmetic number, because the mean of its divisors is an integer number (96350400).

Almost surely, 2^1323421043 is an apocalyptic number.

1323421043 is a deficient number, since it is larger than the sum of its proper divisors (218185357).

1323421043 is a wasteful number, since it uses less digits than its factorization.

1323421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1323421043 is about 36378.8543387501. The cubic root of 1323421043 is about 1097.9081575752.

Adding to 1323421043 its reverse (3401243231), we get a palindrome (4724664274).

The spelling of 1323421043 in words is "one billion, three hundred twenty-three million, four hundred twenty-one thousand, forty-three".