1042321331 has 4 divisors (see below), whose sum is σ = 1042669152. Its totient is φ = 1041973512.

The previous prime is 1042321327. The next prime is 1042321381. The reversal of 1042321331 is 1331232401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331232401 = 1049 ⋅1269049.

It is a cyclic number.

It is not a de Polignac number, because 1042321331 - 2² = 1042321327 is a prime.

It is a super-2 number, since 2×1042321331² = 2172867514115223122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042321321) 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, 169376 + ... + 175421.

It is an arithmetic number, because the mean of its divisors is an integer number (260667288).

Almost surely, 2^1042321331 is an apocalyptic number.

1042321331 is a deficient number, since it is larger than the sum of its proper divisors (347821).

1042321331 is an equidigital number, since it uses as much as digits as its factorization.

1042321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347820.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1042321331 is about 32285.0016416292. The cubic root of 1042321331 is about 1013.9126508275.

Adding to 1042321331 its reverse (1331232401), we get a palindrome (2373553732).

The spelling of 1042321331 in words is "one billion, forty-two million, three hundred twenty-one thousand, three hundred thirty-one".