1040331431 has 4 divisors (see below), whose sum is σ = 1040878872. Its totient is φ = 1039783992.

The previous prime is 1040331419. The next prime is 1040331443. The reversal of 1040331431 is 1341330401.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1040331419) and next prime (1040331443).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040331431 is a prime.

It is a super-2 number, since 2×1040331431² = 2164578972653015522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040331451) 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, 270860 + ... + 274673.

It is an arithmetic number, because the mean of its divisors is an integer number (260219718).

Almost surely, 2^1040331431 is an apocalyptic number.

1040331431 is a deficient number, since it is larger than the sum of its proper divisors (547441).

1040331431 is an equidigital number, since it uses as much as digits as its factorization.

1040331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547440.

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

The square root of 1040331431 is about 32254.1692033759. The cubic root of 1040331431 is about 1013.2670181696.

Adding to 1040331431 its reverse (1341330401), we get a palindrome (2381661832).

The spelling of 1040331431 in words is "one billion, forty million, three hundred thirty-one thousand, four hundred thirty-one".