1031343442 has 4 divisors (see below), whose sum is σ = 1547015166. Its totient is φ = 515671720.

The previous prime is 1031343431. The next prime is 1031343449. The reversal of 1031343442 is 2443431301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2443431301 = 17 ⋅143731253.

It can be written as a sum of positive squares in only one way, i.e., 951043921 + 80299521 = 30839^2 + 8961^2 .

It is not an unprimeable number, because it can be changed into a prime (1031343449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257835859 + ... + 257835862.

Almost surely, 2^1031343442 is an apocalyptic number.

1031343442 is a deficient number, since it is larger than the sum of its proper divisors (515671724).

1031343442 is an equidigital number, since it uses as much as digits as its factorization.

1031343442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515671723.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1031343442 is about 32114.5363036741. The cubic root of 1031343442 is about 1010.3405191067.

Adding to 1031343442 its reverse (2443431301), we get a palindrome (3474774743).

The spelling of 1031343442 in words is "one billion, thirty-one million, three hundred forty-three thousand, four hundred forty-two".