1040313331 has 4 divisors (see below), whose sum is σ = 1049857600. Its totient is φ = 1030769064.

The previous prime is 1040313293. The next prime is 1040313343. The reversal of 1040313331 is 1333130401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333130401 = 12343 ⋅108007.

It is a cyclic number.

It is not a de Polignac number, because 1040313331 - 2²⁹ = 503442419 is a prime.

It is a super-2 number, since 2×1040313331² = 2164503653312631122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040313299 and 1040313308.

It is not an unprimeable number, because it can be changed into a prime (1040313361) 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, 4771971 + ... + 4772188.

It is an arithmetic number, because the mean of its divisors is an integer number (262464400).

Almost surely, 2^1040313331 is an apocalyptic number.

1040313331 is a deficient number, since it is larger than the sum of its proper divisors (9544269).

1040313331 is an equidigital number, since it uses as much as digits as its factorization.

1040313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9544268.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1040313331 is about 32253.8886182736. Note that the first 3 decimals coincide. The cubic root of 1040313331 is about 1013.2611417604.

Adding to 1040313331 its reverse (1333130401), we get a palindrome (2373443732).

The spelling of 1040313331 in words is "one billion, forty million, three hundred thirteen thousand, three hundred thirty-one".