1042435321 has 4 divisors (see below), whose sum is σ = 1043619444. Its totient is φ = 1041251200.

The previous prime is 1042435307. The next prime is 1042435327. The reversal of 1042435321 is 1235342401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1235342401 = 7151 ⋅172751.

It can be written as a sum of positive squares in 2 ways, for example, as 166926400 + 875508921 = 12920^2 + 29589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042435321 - 2¹⁹ = 1041911033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042435327) 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, 590740 + ... + 592501.

It is an arithmetic number, because the mean of its divisors is an integer number (260904861).

Almost surely, 2^1042435321 is an apocalyptic number.

It is an amenable number.

1042435321 is a deficient number, since it is larger than the sum of its proper divisors (1184123).

1042435321 is an equidigital number, since it uses as much as digits as its factorization.

1042435321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184122.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1042435321 is about 32286.7669641914. The cubic root of 1042435321 is about 1013.9496105399.

Adding to 1042435321 its reverse (1235342401), we get a palindrome (2277777722).

The spelling of 1042435321 in words is "one billion, forty-two million, four hundred thirty-five thousand, three hundred twenty-one".