1042041321 has 16 divisors (see below), whose sum is σ = 1572894720. Its totient is φ = 681585840.

The previous prime is 1042041307. The next prime is 1042041331. The reversal of 1042041321 is 1231402401.

It is not a de Polignac number, because 1042041321 - 2⁶ = 1042041257 is a prime.

It is a super-2 number, since 2×1042041321² = 2171700229342850082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1042041294 and 1042041303.

It is not an unprimeable number, because it can be changed into a prime (1042041331) 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, 362665 + ... + 365526.

It is an arithmetic number, because the mean of its divisors is an integer number (98305920).

Almost surely, 2^1042041321 is an apocalyptic number.

It is an amenable number.

1042041321 is a deficient number, since it is larger than the sum of its proper divisors (530853399).

1042041321 is an equidigital number, since it uses as much as digits as its factorization.

1042041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728253 (or 728247 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1042041321 is about 32280.6648165740. The cubic root of 1042041321 is about 1013.8218499392.

Adding to 1042041321 its reverse (1231402401), we get a palindrome (2273443722).

The spelling of 1042041321 in words is "one billion, forty-two million, forty-one thousand, three hundred twenty-one".