1001011343 has 4 divisors (see below), whose sum is σ = 1004999688. Its totient is φ = 997023000.

The previous prime is 1001011339. The next prime is 1001011379. The reversal of 1001011343 is 3431101001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3431101001 = 3217 ⋅1066553.

It is a cyclic number.

It is not a de Polignac number, because 1001011343 - 2² = 1001011339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001011943) 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, 1993796 + ... + 1994297.

It is an arithmetic number, because the mean of its divisors is an integer number (251249922).

Almost surely, 2^1001011343 is an apocalyptic number.

1001011343 is a deficient number, since it is larger than the sum of its proper divisors (3988345).

1001011343 is an equidigital number, since it uses as much as digits as its factorization.

1001011343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988344.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1001011343 is about 31638.7632975753. The cubic root of 1001011343 is about 1000.3370007511.

Adding to 1001011343 its reverse (3431101001), we get a palindrome (4432112344).

The spelling of 1001011343 in words is "one billion, one million, eleven thousand, three hundred forty-three".