1004120331 has 16 divisors (see below), whose sum is σ = 1390413600. Its totient is φ = 643801088.

The previous prime is 1004120263. The next prime is 1004120353. The reversal of 1004120331 is 1330214001.

It is a cyclic number.

It is not a de Polignac number, because 1004120331 - 2⁹ = 1004119819 is a prime.

It is a super-2 number, since 2×1004120331² = 2016515278255099122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1004120331.

It is not an unprimeable number, because it can be changed into a prime (1004121331) 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, 96 + ... + 44813.

It is an arithmetic number, because the mean of its divisors is an integer number (86900850).

Almost surely, 2^1004120331 is an apocalyptic number.

1004120331 is a deficient number, since it is larger than the sum of its proper divisors (386293269).

1004120331 is a wasteful number, since it uses less digits than its factorization.

1004120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45198.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1004120331 is about 31687.8577849624. The cubic root of 1004120331 is about 1001.3715616253.

Adding to 1004120331 its reverse (1330214001), we get a palindrome (2334334332).

The spelling of 1004120331 in words is "one billion, four million, one hundred twenty thousand, three hundred thirty-one".