1031313043 has 4 divisors (see below), whose sum is σ = 1042900920. Its totient is φ = 1019725168.

The previous prime is 1031313011. The next prime is 1031313071. The reversal of 1031313043 is 3403131301.

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

It is a cyclic number.

It is not a de Polignac number, because 1031313043 - 2⁵ = 1031313011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031313043.

It is not an unprimeable number, because it can be changed into a prime (1031313643) 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 3 ways as a sum of consecutive naturals, for example, 5793805 + ... + 5793982.

It is an arithmetic number, because the mean of its divisors is an integer number (260725230).

Almost surely, 2^1031313043 is an apocalyptic number.

1031313043 is a deficient number, since it is larger than the sum of its proper divisors (11587877).

1031313043 is an equidigital number, since it uses as much as digits as its factorization.

1031313043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11587876.

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

The square root of 1031313043 is about 32114.0630098404. The cubic root of 1031313043 is about 1010.3305923639.

Adding to 1031313043 its reverse (3403131301), we get a palindrome (4434444344).

The spelling of 1031313043 in words is "one billion, thirty-one million, three hundred thirteen thousand, forty-three".